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International Space Flight (ESA, Russia, China and others) => Japanese Launchers => Topic started by: docmordrid on 08/29/2009 09:47 pm

Title: Epsilon launch - SPRINT-A, Sept.14, 2013 (0500UTC)
Post by: docmordrid on 08/29/2009 09:47 pm
Hmmm.....

3 stage solid LV lofting 1.2t

http://www.satellitetoday.com/st/topnews/Details-of-New-Japanese-Cost-Cutting-Launch-Vehicle-Leaked_31916.html (http://www.satellitetoday.com/st/topnews/Details-of-New-Japanese-Cost-Cutting-Launch-Vehicle-Leaked_31916.html)
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: hop on 08/29/2009 10:08 pm
The retirement of the M-V did leave them with quite a gap in capability, and GX doesn't appear to be going anywhere fast (and the move to an Atlas V CCB probably moves it further out of that weight class anyway)
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: kch on 08/29/2009 10:17 pm
So, $32 million each to produce and launch?  Makes Falcon 1e look pretty good (so far).  Still, good to have multiple launchers available (mutual backup etc.) -- hope it's successful.  :)
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: savuporo on 08/31/2009 02:44 pm
Pity that they wouldnt take this:

http://www.jaxa.jp/article/interview/no3/index_e.html
http://ina-lab.isas.jaxa.jp/about/index_e.html

and follow through to an operational vehicle.

Title: Re: JAXA's solid fuel "Falcon 1"
Post by: pm1823 on 09/01/2009 12:46 am
Hmmm.....

3 stage solid LV lofting 1.2t

http://www.satellitetoday.com/st/topnews/Details-of-New-Japanese-Cost-Cutting-Launch-Vehicle-Leaked_31916.html
Quote
Eventually, the new rocket may carry a landing vehicle for Japan’s Moon exploration project, targeted for 2020, the agencies said in the reports.

Is it a joke? And '3 stage solid'...'24 meters in length and 2.5 meters in diameter'... nice MX-class ICBM...

Title: Re: JAXA's solid fuel "Falcon 1"
Post by: zaitcev on 08/12/2010 04:15 pm
Spaceflight Now obtained a comment from Yasuhiro Morita, the project's manager (scroll pass Hayabusa stuff):
 http://www.spaceflightnow.com/news/n1008/11japan/
Apparently it's the upper 2 stages of M-V on top of SRB-A, with the corresponding loss of payload. No word as to how the roll control will be accomplished.
-- Pete
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: Eerie on 08/12/2010 04:49 pm
/Conspiracy on

This is an exercise in building an ICBM, right?
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: edkyle99 on 08/12/2010 05:37 pm
/Conspiracy on

This is an exercise in building an ICBM, right?

People said the same thing about M-V.  Didn't happen.  Japan has a "no-ICBM" policy.

These smaller solid fuel rockets trace back to the ISAS (originally University of Tokyo) sounding rocket program, which grew from early "pencil rockets" to provide smallsat launch capability with the Lambda and Mu rockets from Kagoshima.  M-V was the last of that string and ISAS was folded into JAXA.  But there is still a desire in Japan to get back to what should be, essentially, the "smaller-cheaper-faster" science ideal.

 - Ed Kyle
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: Robotbeat on 08/12/2010 07:27 pm
/Conspiracy on

This is an exercise in building an ICBM, right?

People said the same thing about M-V.  Didn't happen.  Japan has a "no-ICBM" policy.
...
Japan has a "no-war" policy in its Constitution, too, but it has plenty of warships, etc. For good or ill, constitutional policies like that often bend to the pragmatism of geopolitical reality.
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: Eerie on 08/12/2010 08:26 pm
Well, I said exercise. They prove once again that they can have ICBM whenever they`ll want to. It is almost as good as having it.
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: pberrett on 08/28/2010 01:03 pm
Here's an idea

To increase the amount of payload the rocket can lift how about if JAXA were to cluster 9 of these Falcon 1s together as a single combined rocket?

Finding a name for the new rocket could be a problem however... :)

cheers Peter
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: Jim on 08/28/2010 01:19 pm
Here's an idea

To increase the amount of payload the rocket can lift how about if JAXA were to cluster 9 of these Falcon 1s together as a single combined rocket?

Finding a name for the new rocket could be a problem however... :)

cheers Peter

bad idea. It is not a parallel to the Falcon 9
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: bolun on 09/16/2010 03:35 pm
Epsilon Launch Vehicle´s brochure.

http://www.jaxa.jp/pr/brochure/pdf/01/rocket07.pdf

Title: Re: JAXA's solid fuel "Falcon 1"
Post by: Fuji on 01/04/2011 12:12 am
Yasuhiro Morita, A New Type of Launch Vehicle: A Rocket with Artificial Intelligence
http://www.jaxa.jp/article/interview/vol58/index_e.html

Good Interview :)
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: Danderman on 01/04/2011 03:26 am
Back to the J1, the first attempt a while back to generate a small orbital vehicle out of an SRB. That program ballooned in cost until it was replaced by the J2, the first iteration of Galaxy Express, until that program ballooned in cost.
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: kkattula on 01/04/2011 07:46 am
Yasuhiro Morita, A New Type of Launch Vehicle: A Rocket with Artificial Intelligence
http://www.jaxa.jp/article/interview/vol58/index_e.html

Good Interview :)


So now they're building an ICBM with AI?

What could possibly go wrong?  ;)
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: tul on 01/04/2011 04:12 pm
Back to the J1, the first attempt a while back to generate a small orbital vehicle out of an SRB. That program ballooned in cost until it was replaced by the J2, the first iteration of Galaxy Express, until that program ballooned in cost.


The problem with the J-I was that it was based on the booster of the H-II. No wonder there was a cost problem. For the J2 or GX, the Atlas III first stage went out of production. Also it was a little bit megalomania to develop a LNG engine in just a few years.

I remember they said in another presentation that it takes 6 month to build an Epsilon rocket. However if there is only one launch per year, what will they do the other 6 months? (Wether or not USEF will use the Epsilon rocket is still in the air, I think)
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: bolun on 10/08/2011 07:00 pm
September 30, 2011 Updated

Static firing test for the upper stage sub-size motor

On September 30, JAXA performed the ground firing test of the sub-size motor (M-34SIM-3) for the Epsilon Launch Vehicle upper stage at the Noshiro Rocket Testing Center. The test mainly aims to verify the insulation material on the upper motor nozzle that is currently under development.

Through this test, we are steadily progressing with the Epsilon development while confirming the insulation function of the upper motor nozzle part based on the test results and maintaining and inheriting the already acquired solid motor static firing test technology.

http://www.jaxa.jp/projects/rockets/epsilon/topics_e.html
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: Patchouli on 10/09/2011 11:35 pm
I 'd say this rocket is more similar to Vega then Falcon 1.
http://en.wikipedia.org/wiki/Vega_%28rocket%29
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: bolun on 11/09/2012 09:34 pm
October 15, 2012 Updated

Extension test of the second stage motor nozzle

The extension test of the second stage motor nozzle of the Epsilon Launch Vehicle was held at the Sagamihara Campus in late September.

This extension nozzle is a technology that was adopted for the kick motor of the M-3SII Rocket launched in 1989. The nozzle is extended by the force of a light-weighted spring shortened and installed inside the nozzle.

The test this time checked the spring and extension mechanism of the nozzle for M-34c, the renovated type from the nozzle for the third stage motor M34b of the M-V Launch Vehicle. The nozzle was verified to work properly through the test.

http://www.jaxa.jp/projects/rockets/epsilon/index_e.html
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: Galactic Penguin SST on 03/04/2013 03:05 am
Lots of interesting rockets debuting this year, and this is one of the less known ones. Good to see it's still on target for first flight in August: http://www.aviationweek.com/Article.aspx?id=/article-xml/asd_03_01_2013_p03-02-554161.xml (http://www.aviationweek.com/Article.aspx?id=/article-xml/asd_03_01_2013_p03-02-554161.xml)
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: R7 on 03/04/2013 10:02 am
Japanese police force getting a new just-in-case toy.
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: edkyle99 on 03/04/2013 01:14 pm
Japanese police force getting a new just-in-case toy.

No.  It's an orbital launcher, based on SRB-A solids used for H-2A boost.  It is too big to be a useful missile at any rate. 

 - Ed Kyle
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: R7 on 03/04/2013 01:48 pm
Japanese police force getting a new just-in-case toy.
It is too big to be a useful missile at any rate. 

Replace PLF with 'atomic police force projection device' and it won't be much taller than Minuteman.

Leave 3rd stage away (not needed to greet Kim Jong-un) and it's even shorter.
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: edkyle99 on 03/04/2013 01:54 pm
Japanese police force getting a new just-in-case toy.
It is too big to be a useful missile at any rate. 

Replace PLF with 'atomic police force projection device' and it won't be much taller than Minuteman.

Leave 3rd stage away (not needed to greet Kim Jong-un) and it's even shorter.
Epsilon is going to weigh 91 tonnes at liftoff.  Minuteman III only weighs 34.5 tonnes.  Russia's Topol-M missile only weighs 47.2 tonnes.  And even these smaller missile are strategic intercontinental range missile systems, something that Japan simply has no use for. 

 - Ed Kyle
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: Stan Black on 03/04/2013 02:21 pm
So this is based around the current SRB-A3?

Is this correct SRB-A2 were intended for H-2A204? But used since 2005. Two variants were available, for rockets with either two or four units. Now replaced by SRB-A3 in 2009, also with two loadings, configurations?

http://www.rocket.jaxa.jp/rocket-engine/engine/srba/
http://www.jaxa.jp/press/nasda/2003/srba2_20030418_j.html
http://www.jaxa.jp/countdown/f11/presskit/h2a-f11_guide_e.pdf
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: R7 on 03/04/2013 02:25 pm
Epsilon is going to weigh 91 tonnes at liftoff.  Minuteman III only weighs 34.5 tonnes.  Russia's Topol-M missile only weighs 47.2 tonnes.

So? R-36 weighs 200+ tonnes, still in use.

Quote
And even these smaller missile are strategic intercontinental range missile systems, something that Japan simply has no use for.

One could say the same about things like French SLBM, yet they exist. And as said, leave stage(s) away, decrease range.
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: Prober on 03/04/2013 02:35 pm
A 1/3 cost reduction is interesting.
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: edkyle99 on 03/04/2013 05:29 pm
Epsilon is going to weigh 91 tonnes at liftoff.  Minuteman III only weighs 34.5 tonnes.  Russia's Topol-M missile only weighs 47.2 tonnes.

So? R-36 weighs 200+ tonnes, still in use.
R-36 is outmoded, and is supposed to be phased out.  It is a dinosaur from the coldest days of the Cold War.  Neither Japan, nor any other modern country, should have use for such a costly weapons system.
Quote
Quote
And even these smaller missile are strategic intercontinental range missile systems, something that Japan simply has no use for.

One could say the same about things like French SLBM, yet they exist. And as said, leave stage(s) away, decrease range.

France isn't orbiting satellites with SLBMs. And M51 weighs only 52 tonnes compared to Epsilon's 92 tonnes.

If Japan wanted a strategic missile force, it would most likely develop SLBMs, and they would weigh far less and be smaller in diameter than Epsilon.  But Japan is not doing any of that.  Epsilon is a space rocket, not a missile.

 - Ed Kyle
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: baldusi on 03/04/2013 05:45 pm
It's pretty difficult to design a small & cheap launcher and not be called a potential SLBM. In South America we have that problem. You'd be surprised at how many hops and turns (plus visits and invitations) we've needed to convince the rest of the world that Tronador is not an ICBM technology development program. And even them we have extremely stupid journalists calling it that.
There's a lot of potential for 100kg LEO satellites. Regrettably, that's pretty close to an slightly oversized SLBM. And if you want to do it for cheap, doing solids that you can launch with minimum infrastructure and campaign is a very reasonable alternative. Again, just like an SLBM.
I still think that the real issue for an SLBM is the warhead. I.e. the nuclear head, the reentry TPS, guidance, etc. And both Japan, Argentina and Brazil have their whole nuclear programs audited so they can't move uranium unaccounted for.
Brazil does have a reentry project, though (SARAL suborbital).
I still think that calling this a SLBM project would show a serious lack of professional analysis.
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: R7 on 03/05/2013 02:23 pm
It's pretty difficult to design a small & cheap launcher and not be called a potential SLBM.

It's not that hard, just leave solids out of the picture. Use them as side boosters if you really must incorporate your national defense contractor.  And have a cryogenic part somewhere, at least LOX in the booster. All solids / completely storable design always screams of xxBM manufacturing capability.

Argentina can soothe the criticism by rolling out La Presidenta  :-*. On top of looking good she could help by not rehashing the Falklands agenda. Border tensions always bring military issues under microscope.


Title: Re: JAXA's solid fuel "Falcon 1"
Post by: baldusi on 03/05/2013 03:38 pm
Easy means either solid or hypergolic. Cryo is the most desirable, in fact, we tried. But ended up with the hypergolic due to the technical difficulties of cryo. And Brazil didn't even tried at first. Simply expanded their sounding rocket program, which was obviously all solid. Only now they are making a small CH4/LOX pressure fed engine (the L5) and developing a pump fed kerosene/LOX (the L75). But if the first stages are solid, you have a very capable xxBM.
The japanese had some very specific requirements for Falcon 1. Mainly to do with minimum launch campaing and on pad work and infrastructure. I don't think it's possible to do it with anything bu solids. They even talked that they were developing a formula that they could model like clay and even melt back if they found an anomaly.
And please, please, please. Don't mention her. Things are not exactly rosy here.
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: russianhalo117 on 03/05/2013 03:56 pm
Should we have a Mod change the thread title to actually match the launcher's name: Epsilon Space Launch Vehicle (SLV)?
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: R7 on 03/05/2013 06:19 pm
They even talked that they were developing a formula that they could model like clay and even melt back if they found an anomaly.

This is the technically interesting part here, any information of the composition of this stuff available? Performance versus traditional solids etc?
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: edkyle99 on 03/05/2013 06:26 pm
It's pretty difficult to design a small & cheap launcher and not be called a potential SLBM.
It's not that hard, just leave solids out of the picture.

That's ridiculous.  That's like saying it is o.k. to build an airplane, just don't use jet engines to power it.

Military missiles have different design goals than space launchers, which lead to different design solutions regardless of propellant type.

 - Ed kyle
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: R7 on 03/05/2013 06:53 pm
It's pretty difficult to design a small & cheap launcher and not be called a potential SLBM.
It's not that hard, just leave solids out of the picture.
That's ridiculous.  That's like saying it is o.k. to build an airplane, just don't use jet engines to power it.

Incorrect comparison so argument is non-sequitur + straw man. Ed, please, you are better than this.
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: edkyle99 on 03/06/2013 02:38 pm
It's pretty difficult to design a small & cheap launcher and not be called a potential SLBM.
It's not that hard, just leave solids out of the picture.
That's ridiculous.  That's like saying it is o.k. to build an airplane, just don't use jet engines to power it.

Incorrect comparison so argument is non-sequitur + straw man. Ed, please, you are better than this.
You said that a solid rocket motor implies that a rocket is also a missile, which is not true.  By your logic, comparing propulsion types, since fighter planes use jet engines, any plane powered by a jet engine is also a fighter plane.  Etc.

 - Ed Kyle
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: R7 on 03/06/2013 03:43 pm
You said that a solid rocket motor implies that a rocket is also a missile

No. What I said is that if you don't want your small & cheap launcher to be called a potential SLBM then don't do design similar to SLBMs.

Quote
By your logic, comparing propulsion types, since fighter planes use jet engines, any plane powered by a jet engine is also a fighter plane.  Etc.

This is your strawman logic and fails to address the special issues in rocket propulsion types which have no comparison in aircrafts. The special issues are storability and rapid deployment. For aircrafts piston or jet, all the same, burns kerosene anyway, it's ready to go just turn the key. Rockets, big differences between solids vs liquids. Solids make the perfect choice for military application, years of relatively effortless compact storage while ready to deploy pretty much instantly, just remember to open the silo roof/sub hatch. You can stare thru the throat at motor grain all day long and it won't attack you.

Now try to replicate previous with cryogenic or toxic/corrosive storable liquids. "What Mr President, oh the WW3 is on? OK we can decimate the enemy in .... a few hours, gotta condition the tanks and load cryogenics first". Stare at IRFNA fueled missile while it develops a leak and notice your lungs are missing.

You know the reasons why all-solids/storable rockets have potential tactical military advantage over other designs, I think you are just having me on :) You can't handwave those reasons away but course you can always try. Chemical compositions are secondary, the warhead levels the city just as good whether there were HMX in the motor grain or not.
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: baldusi on 03/06/2013 05:01 pm
It's pretty difficult to design a small & cheap launcher and not be called a potential SLBM.
It's not that hard, just leave solids out of the picture.
You insist on forgetting that the easiest liquid engines to design are the hypergolic. Which I think was used by some xxBMs. I can't think of any country that tries to get into the LV club that didn't started either with solids or hypergolics. The industrial base of the military industry might help it. But there are good technical reasons, too. The only reasons even start ups in USA can do cryo is that they have a huge industrial and technical base inside. Ask anyone that's been successful and NASA did help them greatly. But for the rest of the world, ITAR doesn't allows us to tap on that experiences.
But, as I said before, trying to do micro launcher means that the infrastructure and campaign costs have to be slashed. Microlaunchers is about launching things for very little money. Not for cheap on a $/kg basis. But for little amount of money. If you could launch just 20kg for 1M to LEO, it would be a boom. Even though the cost per kg would be even higher than using the space shuttle.
But for that money you could launch 15 cubesats and charge them 67k per launch. Which would mean that for 120k they could have the whole satellite up. That's money any university or small company can get.
That was extreme, but the idea is always that you have to minimize time on pad and launch campaign. And spend very little on research. So, unless you are Russian or American you'd most probably use solids or hypergolics. And people are going to say "that's an xxBM in disguise!".
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: R7 on 03/06/2013 05:26 pm
You insist on forgetting that the easiest liquid engines to design are the hypergolic.

No; "And have a cryogenic part somewhere, at least LOX in the booster."

Btw the fact that hypergolics autoignite is not the most relevant issue in military applications, more like nice to have side-bonus. It's the long term room-temperature storability that matters. An igniter is a nonissue, pretty much first thing every amateur rocketeer builds :)

I respectfully disagree that propellant prodution and handling is more difficult with cryogenics involved than NTO/MMH. Heck you can build nitrogen liquifier with $500 (http://benkrasnow.blogspot.fi/2008/08/diy-liquid-nitrogen-generator.html), someone on youtube is working on a project to build airliquifier using junkyard parts. Good luck with producing NTO/MMH with similar budget/means.

Quote
And spend very little on research. So, unless you are Russian or American you'd most probably use solids or hypergolics.

The relevant research for both solids and liquids was pretty much all done in the 60s and is widely available on internet and bookstores for every nationality.

edit:
Quote
I can't think of any country that tries to get into the LV club that didn't started either with solids or hypergolics.

How unsurprising. Countries wanting to get into LV club have hardly ever had purely peaceful motives. OTOH many serious newSpace efforts, in and outside existing LV capable countries, are utilizing LOX in their system. AFAIK none are using NTO/MMH and HTP has shortage issues.
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: edkyle99 on 03/06/2013 08:35 pm
You said that a solid rocket motor implies that a rocket is also a missile

No. What I said is that if you don't want your small & cheap launcher to be called a potential SLBM then don't do design similar to SLBMs.

Epsilon is not "similar" to SLBMs.  It is 2.5 meters diameter and 24 meters tall.  By comparison, Bulava is 2 meters diameter and half as tall.  Trident 2 is 2.1 meters diameter and 13.4 meters tall.  Both SLBMs weigh substantially less than Epsilon too.  Bulava weighs less than 40% as much as Epsilon.   

Also, if Epsilon were a weapons development effort, why would Dr. Yasuhiro Morita, Ph.D., a Professor in the Department of Space Systems and Astronautics at the Institute of Space and Astronautical Science/JAXA be the Project Manager?  Dr. Morita has worked on many things at ISAS, including the now-retired M-V rocket, but not missiles - unless you think ISAS is some kind of covert military organization.  (But then, since it has long-worked on solid fueled rockets, it must be military, right?)

 - Ed Kyle
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: R7 on 03/06/2013 10:06 pm
Epsilon is not "similar" to SLBMs

Nowhere claimed it is.

Quote
Also, if Epsilon were a weapons development effort ...

It doesn't matter who leads the project and under what organization, their motives can be utterly peaceful. There are bigger wigs above them and in different govt branches, some with metal on shoulders, who see it beneficial that the inevitable side-product is useable R&D and manufacturing capability for 'other purposes', if need would arise.

If happy smiling peaceful people working in peaceful organization doing peaceful space exploration while at the same time inadvertently doing ICBM related testing seems out of this world then as an example recollect Geminis flying on top of Titan II variants, while at the same time about 60 pretty much the same LVs sat in silos, multimegaton warhead on the nose. Very pragmatic for the those intense times.

Note that I'm not against Japan, Argentina or any country pursuing all-solid/storable designs, knock yourselves out. Just don't act all surprised and shocked if potential fruits for non-peaceful applications are suspected, definitely not my invention nor even a new idea.
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: russianhalo117 on 03/07/2013 02:02 am
Epsilon is not "similar" to SLBMs

Nowhere claimed it is.

Quote
Also, if Epsilon were a weapons development effort ...

It doesn't matter who leads the project and under what organization, their motives can be utterly peaceful. There are bigger wigs above them and in different govt branches, some with metal on shoulders, who see it beneficial that the inevitable side-product is useable R&D and manufacturing capability for 'other purposes', if need would arise.

If happy smiling peaceful people working in peaceful organization doing peaceful space exploration while at the same time inadvertently doing ICBM related testing seems out of this world then as an example recollect Geminis flying on top of Titan II variants, while at the same time about 60 pretty much the same LVs sat in silos, multimegaton warhead on the nose. Very pragmatic for the those intense times.

Note that I'm not against Japan, Argentina or any country pursuing all-solid/storable designs, knock yourselves out. Just don't act all surprised and shocked if potential fruits for non-peaceful applications are suspected, definitely not my invention nor even a new idea.
Such activity by Japan with military application as a type of weapon would require a nod or two from the USA because of the military restrictions outlined/imposed in the peace treaty signed by Japan and Allied Forces to conclude WWII.
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: R7 on 03/07/2013 07:45 am
Such activity by Japan with military application as a type of weapon would require a nod or two from the USA because of the military restrictions outlined/imposed in the peace treaty signed by Japan and Allied Forces to conclude WWII.

I take it you refer to the Article 9. (http://en.wikipedia.org/wiki/Article_9_of_the_Japanese_Constitution)

Quote
"To accomplish the aim of the preceding paragraph, land, sea, and air forces, as well as other war potential, will never be maintained."

The currently existing main battle tanks, destroyers, helicopter carriers, fighter jets etc.etc. are obviously just for ... police patrolling?

As far as xxBM tech is concerned no nods are required as long as you don't create an actual xxBM and 'physics packages'. It is difficult to sanction against ability to build things, especially when such things built slightly differently can be argued to be of purely peaceful nature.
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: R7 on 03/07/2013 08:23 pm
I thought you were saying that only solid fuel rockets were likely to become missiles!

Then you ought to reread what's been said!¡

Quote
I simply disagree with your belief that solid fuel launch vehicle development implies a hidden missile agenda, especially in the Epsilon case.

Good, then we shall just respectfully disagree on that. But hey do you know anything about the rumored new grain compound than can be remelted/recast? That is interesting. Is it completely new formula, or traditional chemicals mixed with some new twist?
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: russianhalo117 on 03/07/2013 10:16 pm
I thought you were saying that only solid fuel rockets were likely to become missiles!

Then you ought to reread what's been said!¡

Quote
I simply disagree with your belief that solid fuel launch vehicle development implies a hidden missile agenda, especially in the Epsilon case.

Good, then we shall just respectfully disagree on that. But hey do you know anything about the rumored new grain compound than can be remelted/recast? That is interesting. Is it completely new formula, or traditional chemicals mixed with some new twist?
Using the word rumor in a statement implies a lack of concrete evidence, a personal opinion, false claim and/or wording that contains multiple meanings and is usually hearsay unless form valid, trusted sources, such as scholarly journals et cetera.
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: R7 on 03/08/2013 04:23 am
do you know anything about the rumored new grain compound than can be remelted/recast? That is interesting. Is it completely new formula, or traditional chemicals mixed with some new twist?
Using the word rumor in a statement implies a lack of concrete evidence, a personal opinion, false claim and/or wording that contains multiple meanings and is usually hearsay unless form valid, trusted sources, such as scholarly journals et cetera.

http://www.merriam-webster.com/dictionary/rumor (http://www.merriam-webster.com/dictionary/rumor)

among other meanings:

3 archaic : talk or report of a notable person or event

For me a new more universal solid propellant composition would be a notable event in rocketry. Yeah, archaic expression, does not mean it's illegal to use even today.
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: simonbp on 03/10/2013 04:48 pm
I think if Japan really wanted to to make a ballistic missile, they would just build an obvious ballistic missile and find some self-defense excuse to keep it constitutional. Just like they built an obvious aircraft carrier and then called it a "helicopter-carrying frigate".

On the other hand, if they wanted to build a low-cost space launch vehicle that leverages their solid rocket experience, it would look like exactly what they are building...
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: Galactic Penguin SST on 04/08/2013 06:52 am
Looks like this little rocket is coming up nicely: most of the testing needed has already been wrapped up, with the last ones (e.g. launch pad platform rotation/connection tests, second stage motor case testing etc.) slated to be finished by mid-May. Then a few launch rehersals and the first flight should be ready to go in the summer!

Any Japanese members here can give a more precise date for the first flight than "summer 2013"?  :)

Source: http://www.isas.jaxa.jp/j/topics/topics/2013/0405.shtml (http://www.isas.jaxa.jp/j/topics/topics/2013/0405.shtml)
Title: Re: Epsilon Space Launch Vehicle
Post by: Galactic Penguin SST on 04/10/2013 09:07 am
BTW from Japanese sources that I have seen, the current configuration of Epsilon (known as E-X) will only be used for the first few launches. A new Epsilon Mk.2 (known as E-I) will debut in 2017 with various improvements (non-hypergolic RCS, lighter solid motors, lighter electronics etc.). Has the configuration of E-I been decided yet?
Title: Re: Epsilon Space Launch Vehicle
Post by: Skyrocket on 04/10/2013 09:19 am
BTW from Japanese sources that I have seen, the current configuration of Epsilon (known as E-X) will only be used for the first few launches. A new Epsilon Mk.2 (known as E-I) will debut in 2017 with various improvements (non-hypergolic RCS, lighter solid motors, lighter electronics etc.). Has the configuration of E-I been decided yet?

Do you have a link to the Japanese sources on the new configuration?
Title: Re: Epsilon Space Launch Vehicle
Post by: Satori on 04/10/2013 10:47 am
Send a message on the first Epsilon rocket http://www.jaxa.jp/countdown/epsilon/index_e.html
Title: Re: Epsilon Space Launch Vehicle
Post by: Galactic Penguin SST on 04/18/2013 11:33 am
The modified launch rotation platform (strengthened to support the heavier 1st stage, lock down of the inclination arm to the vertical position for lower launch acceleration and a new flame duct that reduces noise) has been tested today at KASC, apparently without issue. On the ground facilities side the only test left is the umbilical retraction test (scheduled on next week).

Source (http://www.sacj.org/openbbs/)
Title: Re: Epsilon Space Launch Vehicle
Post by: baldusi on 04/18/2013 05:30 pm
what's that seen on Ex103,jpg? A mechanical model?
Title: Re: Epsilon Space Launch Vehicle
Post by: Galactic Penguin SST on 04/18/2013 05:32 pm
what's that seen on Ex103,jpg? A mechanical model?

The one on the left or on the right?
Title: Re: Epsilon Space Launch Vehicle
Post by: baldusi on 04/18/2013 06:28 pm
what's that seen on Ex103,jpg? A mechanical model?

The one on the left or on the right?

On the right. It looks like a nozzle model.
It can be also seen on the left on d1640.jpg
Title: Re: Epsilon Space Launch Vehicle
Post by: Galactic Penguin SST on 04/18/2013 06:41 pm
what's that seen on Ex103,jpg? A mechanical model?

The one on the left or on the right?

On the right. It looks like a nozzle model.
It can be also seen on the left on d1640.jpg

That's a mass model simulating the mass of the rocket I think.
Title: Re: Epsilon Space Launch Vehicle
Post by: Fuji on 04/19/2013 12:15 am
what's that seen on Ex103,jpg? A mechanical model?

The one on the left or on the right?

On the right. It looks like a nozzle model.
It can be also seen on the left on d1640.jpg

That's a mass model simulating the mass of the rocket I think.

M-V Ground Test Vehicle.
Title: Re: Epsilon Space Launch Vehicle
Post by: yoichi on 04/20/2013 12:38 am
Epsilon rocket CG image
http://jda.jaxa.jp/result_strm.php?lang=e&id=7de5bd61b11d7b55448ea58094cd087a
Title: Re: Epsilon Space Launch Vehicle
Post by: Prober on 04/20/2013 03:00 pm
Epsilon rocket CG image
http://jda.jaxa.jp/result_strm.php?lang=e&id=7de5bd61b11d7b55448ea58094cd087a (http://jda.jaxa.jp/result_strm.php?lang=e&id=7de5bd61b11d7b55448ea58094cd087a)

Love the round table type pad design.
Title: Re: Epsilon Space Launch Vehicle
Post by: cheesybagel on 04/20/2013 10:06 pm
I am more interested in the H-X concept with the expander bleed cycle main thrusters. This seems to be another exercise to show Japan can build an ICBM^H^H^H^H rapid response launch system if they want to.
Title: Re: Epsilon Space Launch Vehicle
Post by: Zed_Noir on 04/20/2013 10:10 pm
That rotating service tower kinda of like the LP 1 pad at Kodiak.
Title: Re: Epsilon Space Launch Vehicle
Post by: Skyrocket on 04/20/2013 11:08 pm
That rotating service tower kinda of like the LP 1 pad at Kodiak.

The service tower is not rotating, it is fixed.
Title: Re: Epsilon Space Launch Vehicle
Post by: blister on 05/20/2013 11:52 pm
Epsilon rocket launch schedule jounalist brifing is today in japan.
2013.5.20.0700UTC (21 1600JST)
Webcast start by NVS.
http://www.ustream.tv/channel/nvs-live
Title: Re: Epsilon Space Launch Vehicle
Post by: blister on 05/21/2013 02:21 am
http://www.asahi.com/tech_science/update/0521/TKY201305210062.html?tr=pc
Launch is 8/22.
Title: Re: Epsilon Space Launch Vehicle
Post by: blister on 05/21/2013 04:36 am
Jonalist brifing webcast by Mr.Imamura.
http://www.ustream.tv/channel/imamura?utm_campaign=t.co&utm_source=182283&utm_medium=social
Title: Re: Epsilon Space Launch Vehicle
Post by: blister on 05/21/2013 05:15 am
http://www.jaxa.jp/press/2013/05/20130521_epsilon_j.html
Launch schedule by JAXA
Title: Re: Epsilon Space Launch Vehicle
Post by: Lar on 05/21/2013 05:20 am
Epsilon rocket CG image
http://jda.jaxa.jp/result_strm.php?lang=e&id=7de5bd61b11d7b55448ea58094cd087a


Does someone know of a version of this that doesn't "buffer" quite so badly, on youtube perhaps?
Title: Re: Epsilon Space Launch Vehicle
Post by: Galactic Penguin SST on 05/21/2013 05:34 am
http://www.jaxa.jp/press/2013/05/20130521_epsilon_j.html
Launch schedule by JAXA

So the actual launch window is 04:30 - 05:30 UTC on August 22.
Title: Re: Epsilon Space Launch Vehicle
Post by: Fuji on 05/21/2013 06:42 am
English Press release.

Launch of Spectroscopic Planet Observatory for Recognition of Interaction of Atmosphere (SPRINT-A) by Epsilon-1
http://www.jaxa.jp/press/2013/05/20130521_epsilon_e.html
Title: Re: Epsilon Space Launch Vehicle
Post by: blister on 05/21/2013 06:48 am
http://jda.jaxa.jp/category_p.php?lang=j&page=&category1=1&category2=27&page_pics=50
The new paint photo image is here.
Title: Re: Epsilon Space Launch Vehicle
Post by: blister on 05/21/2013 06:09 pm
JAPAN economy newspaper report.
Abstract of yesturday press brifing.
Low cost rocket etc...
http://www.nikkei.com/article/DGXNASFK2103P_R20C13A5000000/
Title: Re: Epsilon Space Launch Vehicle
Post by: Fuji on 05/23/2013 02:41 pm
Epsilon fairling was shipping.
Title: Re: Epsilon Space Launch Vehicle
Post by: blister on 06/02/2013 08:17 am
http://www.asahi.com/national/update/0602/SEB201306020004.html
Epsiron have tranceport troble.
Title: Re: Epsilon Space Launch Vehicle
Post by: Galactic Penguin SST on 06/02/2013 12:13 pm
http://www.asahi.com/national/update/0602/SEB201306020004.html
Epsiron have tranceport troble.


Heh, the truck hauling the first stage motor broke down (hydraulic problems) on the slope 300 meters from the KASC main gate! Looks like it will stay there for a few days waiting for replacement parts...
Title: Re: Epsilon Space Launch Vehicle
Post by: simonbp on 06/05/2013 01:59 am
Could you call that a Stage Zero failure? :)
Title: Re: Epsilon Space Launch Vehicle
Post by: Fuji on 06/05/2013 10:07 pm
Could you call that a Stage Zero failure? :)

That's transporter trouble. They were recovered and arrived yesterday.
No schedule impact ;)
Title: Re: Epsilon Space Launch Vehicle
Post by: blister on 06/15/2013 08:16 pm
SPRINT-A rollout!
SPRINT-A satelite will launch by Epsiron rocket.
SPRINT-A's innername is kyokutan.
SPRINT-A like kadomatu.
Movie by NVS is here.
http://youtu.be/qHA5gCYWudw
Title: Re: Epsilon Space Launch Vehicle
Post by: Prober on 06/16/2013 11:44 am
Do you have more information on this JAXA program D-Send#2
 
http://youtu.be/pxvBukVsFbY (http://youtu.be/pxvBukVsFbY)
Title: Re: Epsilon Space Launch Vehicle
Post by: yoichi on 06/16/2013 12:56 pm
Do you have more information on this JAXA program D-Send#2
 
http://youtu.be/pxvBukVsFbY (http://youtu.be/pxvBukVsFbY)

http://www.aero.jaxa.jp/eng/research/dsend/dsend-index.html
http://www.aero.jaxa.jp/research/d-send/pdf/pam-d-send.pdf
Title: Re: Epsilon Space Launch Vehicle
Post by: blister on 07/12/2013 12:36 pm
Epsiron and SPRINT-A special site.
http://fanfun.jaxa.jp/countdown/epsilon/index.html
Title: Re: Epsilon Space Launch Vehicle
Post by: Prober on 07/12/2013 04:26 pm
Epsiron and SPRINT-A special site.
http://fanfun.jaxa.jp/countdown/epsilon/index.html (http://fanfun.jaxa.jp/countdown/epsilon/index.html)

JAXA is broadcast live via the Internet from the Uchinoura Space Center planetary spectroscopy observation of the Epsilon launch vehicle ( SPRINT-A launch of the. Recruit school, street vision, Science Museum offers delivery company will deliver this footage, such as Internet, cell phones and smart phones, tablet computers, will broadcast stations including CS, CATV, IP broadcasters and public viewing. Together, support the "Epsilon" mission! Also due to the special site open to recruitment by the Twitter messages of support we have started. Is the hashtag "# Epsilon cheer" is. I look forward to supporting messages for Epsilon rocket / planetary spectroscopy observation satellite project team to launch.
 
Title: Re: Epsilon Space Launch Vehicle
Post by: blister on 07/12/2013 05:25 pm
Epsiron seeing guide by NVS.
 http://blog.nvs-live.com/?eid=125
Title: Re: Epsilon Space Launch Vehicle
Post by: blister on 07/12/2013 05:55 pm
Epsilon's twitter hash tag is # Epsilon cheer in Japanese.That is # epsilon(katakana)Ouen(Chinese character)
Should you copy and paste to send message.Japanese hash tag is no good.
Title: Re: Epsilon Space Launch Vehicle
Post by: blister on 07/12/2013 06:21 pm
Epsiron seeing spot selecting is rare.
http://373news.com/_smartphone/pickup/index.php?storyid=49786&sp=1&utm_source=twitterfeed&utm_medium=twitter
Title: Re: Epsilon Space Launch Vehicle
Post by: blister on 07/19/2013 05:40 pm
Sprint A infomation session.
July 20,1330JST webcast
start by NVS.
http://blog.nvs-live.com/?eid=128
Title: Re: Epsilon Space Launch Vehicle
Post by: jcm on 08/02/2013 08:08 pm
SPRINT-A launch press kit, I think: (In Japanese..)

 

http://www.jaxa.jp/press/2013/05/20130521_epsilon.pdf
Title: Re: Epsilon Space Launch Vehicle
Post by: jcm on 08/02/2013 08:54 pm
Here's what I have gleaned from the press kit:
The Episilon rocket (Ipushironroketto, イプシロンロケット )
consists of the SRB-A3 with M-34c and KM-V2b
stages and a hydrazine PBS (Post-boost stage),
called
小型液体推進系
(Kogata ekitai suishin-kei, small liquid propulsion system)
in Japanese.

Rocket mission:  Epsilon rocket test No. 1  (ipushironroketto shiken-ki 1-ki)
イプシロンロケット試験機 1機
or ε-1
Satellite:  Planet spectroscopic observation satellite No. 1, Wakusei bunko kansuko eisei 1-ki
惑星分光観測衛星 1基) 284s.
Mass 340 kg. Size: Box + 2 wings, 4 x 1 x 1 m (6m span across solar arrays).
Design life 1 year.
Orbit 106 min, 950 x 1150 km x 31 deg.

The launch profile is

Time  Range  Alt   V-inertial (km/s)
T+0:00   0   0     0   Launch on 112 deg azimuth.
T+1:52  70  88   2.6  Stage 1 burnout
T+2:30 131 147   2.4  Fairing sep
T+2:41 148 162   2.4  Stage 1 sep
T+2:45 154 167   2.4  Stage 2 ignition
T+4:27 415 323   5.1  Stage 2 burnout
T+10:24 1658 822  4.2 Stage 2 sep
T+10:28 1671 823  4.2 Stage 3 ignition
T+11:57 2061 840  7.5 Stage 3 burnout
T+16:48 3846 864  7.4 Stage 3 sep
T+19:08 5943 896  7.4 PBS burn 1
T+29:58 7447 921  7.4 PBS cutoff 1
T+53:50 17431 1143 7.2 PBS burn 2
T+60:30 19020 1154 7.2 PBS cutoff 2
T+61:40 19722 1151 7.2 PBS/SPRINT-A separation




The ground track shows the first PBS burn begns over the N Pacfic at 170W 20N
and the second one just off the coast of Chile, with spacecraft
sep over the northeast coast of Argentina.

Stage 1 is 11.7m long 2.6m dia, with a mass of 75.0t (66.3t prop) thrust 2271N vac,
burn time 116s, Isp(v) 284s.
Stage 2 is 4.3m long (with nozzle extended), 2.2m dia, 12.3t (10.8t prop), 371.5kN, 105s burn, Isp 300s.
Stage 3 is 2.3m long (with nozzle extended), 1.4m dia, 3.3t (2.5t prop), 99.8 kN, 90s burn, Isp 301s.
PBS is 1.2m long 1.5m dia, 0.1t (0.1t prop), 0.4 kN, 1100s max burn time, Isp 215s.
Fairing is 11.1m long 2.6m dia, 1.0t mass.
 
 ---

While one may conclude the PBS empty mass is less than 100 kg,
it would be nice to know what it is (for space debris purposes).

The second stage impact zone appears to be centered at around 170E 25N.
It appears that both the third stage and the PBS will reach orbit, with the PBS
used for minor orbit adjustments.
Title: Re: Epsilon Space Launch Vehicle
Post by: yoichi on 08/08/2013 07:43 am
http://www.jaxa.jp/press/2013/08/20130808_epsilon_e.html

Launch Postponement and Launch Time Change  for Epsilon Launch Vehicle  with SPRINT-A onboard

Scheduled launch day: August 27 (Tue.) 2013
Scheduled launch time window: 1:45 thru 2:30 p.m.
Launch window: between Aug. 28 (Wed.) thru Sept. 30 (Mon.), 2013
Title: Re: Epsilon Space Launch Vehicle
Post by: fatjohn1408 on 08/08/2013 09:01 am
Here's what I have gleaned from the press kit:
The Episilon rocket (Ipushironroketto, イプシロンロケット )
consists of the SRB-A3 with M-34c and KM-V2b
stages and a hydrazine PBS (Post-boost stage),
called
小型液体推進系
(Kogata ekitai suishin-kei, small liquid propulsion system)
in Japanese.

Rocket mission:  Epsilon rocket test No. 1  (ipushironroketto shiken-ki 1-ki)
イプシロンロケット試験機 1機
or ε-1
Satellite:  Planet spectroscopic observation satellite No. 1, Wakusei bunko kansuko eisei 1-ki
惑星分光観測衛星 1基) 284s.
Mass 340 kg. Size: Box + 2 wings, 4 x 1 x 1 m (6m span across solar arrays).
Design life 1 year.
Orbit 106 min, 950 x 1150 km x 31 deg.

The launch profile is

Time  Range  Alt   V-inertial (km/s)
T+0:00   0   0     0   Launch on 112 deg azimuth.
T+1:52  70  88   2.6  Stage 1 burnout
T+2:30 131 147   2.4  Fairing sep
T+2:41 148 162   2.4  Stage 1 sep
T+2:45 154 167   2.4  Stage 2 ignition
T+4:27 415 323   5.1  Stage 2 burnout
T+10:24 1658 822  4.2 Stage 2 sep
T+10:28 1671 823  4.2 Stage 3 ignition
T+11:57 2061 840  7.5 Stage 3 burnout
T+16:48 3846 864  7.4 Stage 3 sep
T+19:08 5943 896  7.4 PBS burn 1
T+29:58 7447 921  7.4 PBS cutoff 1
T+53:50 17431 1143 7.2 PBS burn 2
T+60:30 19020 1154 7.2 PBS cutoff 2
T+61:40 19722 1151 7.2 PBS/SPRINT-A separation




The ground track shows the first PBS burn begns over the N Pacfic at 170W 20N
and the second one just off the coast of Chile, with spacecraft
sep over the northeast coast of Argentina.

Stage 1 is 11.7m long 2.6m dia, with a mass of 75.0t (66.3t prop) thrust 2271N vac,
burn time 116s, Isp(v) 284s.
Stage 2 is 4.3m long (with nozzle extended), 2.2m dia, 12.3t (10.8t prop), 371.5kN, 105s burn, Isp 300s.
Stage 3 is 2.3m long (with nozzle extended), 1.4m dia, 3.3t (2.5t prop), 99.8 kN, 90s burn, Isp 301s.
PBS is 1.2m long 1.5m dia, 0.1t (0.1t prop), 0.4 kN, 1100s max burn time, Isp 215s.
Fairing is 11.1m long 2.6m dia, 1.0t mass.
 
 ---

While one may conclude the PBS empty mass is less than 100 kg,
it would be nice to know what it is (for space debris purposes).

The second stage impact zone appears to be centered at around 170E 25N.
It appears that both the third stage and the PBS will reach orbit, with the PBS
used for minor orbit adjustments.


It's not really inertial speed when your reference frame is the Earth rotating reference frame right. Hope they only mixed it up in the document and not in their code :)
Title: Re: Epsilon Space Launch Vehicle
Post by: R7 on 08/08/2013 04:35 pm
http://en.wikipedia.org/wiki/Earth-centered_inertial
Title: Re: Epsilon Space Launch Vehicle
Post by: jcm on 08/08/2013 10:35 pm
Here's what I have gleaned from the press kit:
The Episilon rocket (Ipushironroketto, イプシロンロケット )
consists of the SRB-A3 with M-34c and KM-V2b
stages and a hydrazine PBS (Post-boost stage),
called
小型液体推進系
(Kogata ekitai suishin-kei, small liquid propulsion system)
in Japanese.

Rocket mission:  Epsilon rocket test No. 1  (ipushironroketto shiken-ki 1-ki)
イプシロンロケット試験機 1機
or ε-1
Satellite:  Planet spectroscopic observation satellite No. 1, Wakusei bunko kansuko eisei 1-ki
惑星分光観測衛星 1基) 284s.
Mass 340 kg. Size: Box + 2 wings, 4 x 1 x 1 m (6m span across solar arrays).
Design life 1 year.
Orbit 106 min, 950 x 1150 km x 31 deg.

The launch profile is

Time  Range  Alt   V-inertial (km/s)
T+0:00   0   0     0   Launch on 112 deg azimuth.
T+1:52  70  88   2.6  Stage 1 burnout
T+2:30 131 147   2.4  Fairing sep
T+2:41 148 162   2.4  Stage 1 sep
T+2:45 154 167   2.4  Stage 2 ignition
T+4:27 415 323   5.1  Stage 2 burnout
T+10:24 1658 822  4.2 Stage 2 sep
T+10:28 1671 823  4.2 Stage 3 ignition
T+11:57 2061 840  7.5 Stage 3 burnout
T+16:48 3846 864  7.4 Stage 3 sep
T+19:08 5943 896  7.4 PBS burn 1
T+29:58 7447 921  7.4 PBS cutoff 1
T+53:50 17431 1143 7.2 PBS burn 2
T+60:30 19020 1154 7.2 PBS cutoff 2
T+61:40 19722 1151 7.2 PBS/SPRINT-A separation




The ground track shows the first PBS burn begns over the N Pacfic at 170W 20N
and the second one just off the coast of Chile, with spacecraft
sep over the northeast coast of Argentina.

Stage 1 is 11.7m long 2.6m dia, with a mass of 75.0t (66.3t prop) thrust 2271N vac,
burn time 116s, Isp(v) 284s.
Stage 2 is 4.3m long (with nozzle extended), 2.2m dia, 12.3t (10.8t prop), 371.5kN, 105s burn, Isp 300s.
Stage 3 is 2.3m long (with nozzle extended), 1.4m dia, 3.3t (2.5t prop), 99.8 kN, 90s burn, Isp 301s.
PBS is 1.2m long 1.5m dia, 0.1t (0.1t prop), 0.4 kN, 1100s max burn time, Isp 215s.
Fairing is 11.1m long 2.6m dia, 1.0t mass.
 
 ---

While one may conclude the PBS empty mass is less than 100 kg,
it would be nice to know what it is (for space debris purposes).

The second stage impact zone appears to be centered at around 170E 25N.
It appears that both the third stage and the PBS will reach orbit, with the PBS
used for minor orbit adjustments.


It's not really inertial speed when your reference frame is the Earth rotating reference frame right. Hope they only mixed it up in the document and not in their code :)

Hmm - based on the later values I think they are indeed using inertial, not Earth rotating. But then the 0 value for launch is wrong, should be 0.34 or so...
good point.
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: yoichi on 08/20/2013 05:48 am
Launch rehersal photo and movie.

http://www.ustream.tv/recorded/37550009
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: bolun on 08/20/2013 08:13 pm
Epsilon Launch Vehicle/SPRINT-A Special Site

http://www.jaxa.jp/countdown/epsilon/index_e.html
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Fuji on 08/20/2013 10:57 pm
Epsilon papercraft   :)
http://fanfun.jaxa.jp/countdown/epsilon/files/epsilon_papercraft.pdf
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: yoichi on 08/21/2013 09:47 am
Launch rehersal photo and movie.

many pictures uploaded here.

http://jda.jaxa.jp/category_p.php?lang=j&page=&category1=1&category2=27&page_pics=50
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/21/2013 09:15 pm
Epsilon test body open.
http://m.youtube.com/watch?feature=youtu.be&v=8N5YLnpSun4&desktop_uri=%2Fwatch%3Fv%3D8N5YLnpSun4%26feature%3Dyoutu.be
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 08/23/2013 05:32 am
Use this for the live broadcast at YouTube on Tuesday:  ;D

http://www.youtube.com/watch?v=tGrSZO1dlgE (http://www.youtube.com/watch?v=tGrSZO1dlgE)
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: input~2 on 08/24/2013 02:19 pm
A3545/13 -  QRDCA THE JAPANESE SPACE EXPLORATION AGENCY (JAXA) HAS PLANNED A  ROCKET LAUNCH. DEBRIS FROM THIS LAUNCH WILL FALL WITHIN AN AREA BOUNDED BY  2345N/16730E 2645N/16736E 2635N/17221E 2335N/17215E BACK TO THE POINT OF ORIGIN.  IN THE INTEREST OF SAFETY ALL NON-PARTICIPATING AIR  TRAFFIC ARE ADVISED TO AVOID THE NOTAMED AREA.  IFR AIRCRAFT UNDER  ATC JURISDICTION SHOULD ANTICIPATE CLEARANCE AROUND THE NOTAMED AREA. SFC - UNL, 0430-0530Z DAILY, 27 AUG 04:30 2013 UNTIL 29 AUG 05:30 2013. CREATED: 23 AUG 18:56 2013
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: input~2 on 08/24/2013 03:03 pm
HYDROPAC   2507/2013(19,81,97).    (221156Z AUG 2013)
WESTERN NORTH PACIFIC.
ROCKETS.
1. HAZARDOUS OPERATIONS:
   A. 270454Z TO 270555Z AUG IN AREA BOUND BY
      30-36-00N 137-53-00E, 30-55-13N 138-51-18E,
      30-53-52N 139-04-49E, 29-53-00N 139-26-00E,
      29-29-00N 138-16-00E.
   B. 270504Z TO 270607Z AUG IN AREA BOUND BY
      26-45-00N 167-36-00E, 26-35-00N 172-21-00E,
      23-35-00N 172-15-00E, 23-45-00N 167-30-00E.
2. CANCEL HYDROPAC 2503/13(71).
3. CANCEL THIS MSG 270707Z AUG 13.
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: input~2 on 08/24/2013 03:12 pm
Countdown to launch
http://fanfun.jaxa.jp/countdown/epsilon/index.html
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/24/2013 05:21 pm
Uchinoura weather
http://weather.yahoo.co.jp/weather/jp/46/8820/46492/8931402.html
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 08/25/2013 04:23 am
GO for launch on Tuesday!  ;D

Launch Time of the Epsilon-1
with SPRINT-A aboard


August 25, 2013 (JST)
Japan Aerospace Exploration Agency (JAXA)

The Japan Aerospace Exploration Agency (JAXA) set the launch time of the first Epsilon Launch Vehicle (Epsilon-1) with the Spectroscopic Planet Observatory for Recognition of Interaction of Atmosphere (SPRINT-A) onboard as follows.


Scheduled launch date: August 27 (Tuesday), 2013 (Japan Standard Time, JST)
Launch time: 1:45:00 p.m. (JST)
Launch time windows: 1:45 p.m. thru 2:30 p.m. (JST)

http://www.jaxa.jp/press/2013/08/20130825_epsilon_e.html (http://www.jaxa.jp/press/2013/08/20130825_epsilon_e.html)
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Prober on 08/25/2013 02:57 pm
Countdown to launch
http://fanfun.jaxa.jp/countdown/epsilon/index.html (http://fanfun.jaxa.jp/countdown/epsilon/index.html)

Easy to figure out the launch time with this link.
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: input~2 on 08/25/2013 06:45 pm
Countdown to launch
http://fanfun.jaxa.jp/countdown/epsilon/index.html (http://fanfun.jaxa.jp/countdown/epsilon/index.html)

Easy to figure out the launch time with this link.
Well, at this time this clock seems to indicate a launch 7 hours after the official T0... (ie 1 day and 17 hours left instead of 1 day and 10 hours)
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: input~2 on 08/25/2013 07:03 pm
Live broadcast to start August 27 at 0425UTC
on http://fanfun.jaxa.jp/countdown/epsilon/epsilon_live.html (http://fanfun.jaxa.jp/countdown/epsilon/epsilon_live.html)

English page:
http://www.jaxa.jp/countdown/epsilon/live_e.html
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: yoichi on 08/26/2013 09:06 am
http://jda.jaxa.jp/result.php?lang=e&id=c13ee186cc91fff841cd366872f9b65a
http://jda.jaxa.jp/result.php?lang=e&id=26c66b5d48899d9f0cabeedfc70cfee8

Epsilon launch control room
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 08/26/2013 11:42 am
JAXA has just released a press kit on the rocket and the SPRINT-A telescope - unfortunately only in Japanese at this moment.  :-[
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: jcm on 08/26/2013 12:58 pm
JAXA has just released a press kit on the rocket and the SPRINT-A telescope - unfortunately only in Japanese at this moment.  :-[

Nice!
Just to confirm my understanding: the third stage and the PBS stage
separate (at T+16:48) so the PBS stage is indeed a separate stage and not just an RCS system that stays attached to the KM-V2b?
The one crucial thing that seems to be missing from this kit is the empty mass of the PBS stage (and attached payload adapter?) in orbit - do you happen to have that info?
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: edkyle99 on 08/26/2013 01:46 pm
JAXA has just released a press kit on the rocket and the SPRINT-A telescope - unfortunately only in Japanese at this moment.  :-[

Nice!
Just to confirm my understanding: the third stage and the PBS stage
separate (at T+16:48) so the PBS stage is indeed a separate stage and not just an RCS system that stays attached to the KM-V2b?
The one crucial thing that seems to be missing from this kit is the empty mass of the PBS stage (and attached payload adapter?) in orbit - do you happen to have that info?

Google Translate of the document says that the PBS is
"separated from the three-stage motor in the rear end", then mentions use of a "Maruman separation adapter".

 - Ed Kyle
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: jcm on 08/26/2013 03:06 pm
JAXA has just released a press kit on the rocket and the SPRINT-A telescope - unfortunately only in Japanese at this moment.  :-[

Nice!
Just to confirm my understanding: the third stage and the PBS stage
separate (at T+16:48) so the PBS stage is indeed a separate stage and not just an RCS system that stays attached to the KM-V2b?
The one crucial thing that seems to be missing from this kit is the empty mass of the PBS stage (and attached payload adapter?) in orbit - do you happen to have that info?

Google Translate of the document says that the PBS is
"separated from the three-stage motor in the rear end", then mentions use of a "Maruman separation adapter".

 - Ed Kyle

Right, by which I assume they mean a Marman clamp!
(which I recently learnt was invented by Zeppo Marx)

The doc also gives a full mass of 0.1 t for the PBS, with 0.1t of propellant,
leaving 0.0t of dry mass :-)  - oh, for an extra decimal place...
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: edkyle99 on 08/26/2013 03:49 pm
Right, by which I assume they mean a Marman clamp!
(which I recently learnt was invented by Zeppo Marx)
Marx's company produced the clamp, and "Zeppo" was the first to jump at the idea and he almost certainly refined the product, but an independent inventor reportedly brought the concept to him.  I have yet to find the original inventor's name, but he was described by Mr. Marx has having been flat broke with holes in his shoes, etc..

 - Ed Kyle
Title: Re: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: jcm on 08/26/2013 05:36 pm
Right, by which I assume they mean a Marman clamp!
(which I recently learnt was invented by Zeppo Marx)
Marx's company produced the clamp, and "Zeppo" was the first to jump at the idea and he almost certainly refined the product, but an independent inventor reportedly brought the concept to him.  I have yet to find the original inventor's name, but he was described by Mr. Marx has having been flat broke with holes in his shoes, etc..

 - Ed Kyle

Ah, fair enough. 'first produced by' (or perhaps even 'developed') rather than 'invented', then
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Chris Bergin on 08/26/2013 08:47 pm
Moved for live coverage.
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: robertross on 08/26/2013 11:43 pm
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Da Vinci on 08/26/2013 11:58 pm
Sorry to put this in the live thread, but there doesn't seem to be a generic Epsilon thread? Anyway, in  this Youtube (http://www.youtube.com/watch?v=Fs9Vn00oHO) of the Sprint-A mission, I noticed something in the animations of stage ignition. In both the second and third stage ignition sequences, after nozzle extension but before ignition, something appears to be ejected from the nozzle. Any ideas what this is? Something generally used in solids, or perhaps just artistic licence in the animation?
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Fuji on 08/27/2013 12:30 am
I noticed something in the animations of stage ignition. In both the second and third stage ignition sequences, after nozzle extension but before ignition, something appears to be ejected from the nozzle. Any ideas what this is? Something generally used in solids, or perhaps just artistic licence in the animation?

jettisonable igniter plug.
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Fuji on 08/27/2013 12:36 am
Good photos of the rotational laucher  :)
(This potos are shooting the launch rehearsal.)
http://www.isas.jaxa.jp/j/topics/topics/2013/0823.shtml

Today's rotational schedule will be 01:45 UTC (L-3 hours).


Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 08/27/2013 12:50 am
I noticed something in the animations of stage ignition. In both the second and third stage ignition sequences, after nozzle extension but before ignition, something appears to be ejected from the nozzle. Any ideas what this is? Something generally used in solids, or perhaps just artistic licence in the animation?

jettisonable igniter plug.

Apparently it also assists the extension of the nozzle too - never seen such a design before anywhere!

See how it works at http://jda.jaxa.jp/result.php?lang=e&id=d4fe91c7cd31f9062f91e3ed5d407550 (http://jda.jaxa.jp/result.php?lang=e&id=d4fe91c7cd31f9062f91e3ed5d407550).
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Fuji on 08/27/2013 01:26 am
I noticed something in the animations of stage ignition. In both the second and third stage ignition sequences, after nozzle extension but before ignition, something appears to be ejected from the nozzle. Any ideas what this is? Something generally used in solids, or perhaps just artistic licence in the animation?


jettisonable igniter plug.

Apparently it also assists the extension of the nozzle too - never seen such a design before anywhere!

See how it works at http://jda.jaxa.jp/result.php?lang=e&id=d4fe91c7cd31f9062f91e3ed5d407550 (http://jda.jaxa.jp/result.php?lang=e&id=d4fe91c7cd31f9062f91e3ed5d407550).

Thanks, You are right. It' my mistake. It was another one. I'm not watch the video.
These system were introduced from M-V, not new system.
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: jcm on 08/27/2013 02:20 am
Is the new Epsilon pad built on the site of the M-V pad, or just nearby?
I assume the former - they just rebuilt the M pad?

Edit: never mind, I found the answer - yes, it's the rebuilt M pad
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 08/27/2013 02:28 am
Is the new Epsilon pad built on the site of the M-V pad, or just nearby?
I assume the former - they just rebuilt the M pad?

Edit: never mind, I found the answer - yes, it's the rebuilt M pad

Well they didn't even demolish the pad structures and service tower - they just modified it for the new LV (e.g. modified launch table such that it is now fixed straight up instead of having to rotate to the proper azimuth during the M-V days, modified service arms and flame ducts etc.).

Looks like the skies are perfectly clear for launch today!  ;D And the rocket is now visible for launch as the service tower has already been rotated to the launch position....

Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Chris Bergin on 08/27/2013 03:16 am
An expansive and fascinating launch preview/overview by William Graham:
http://www.nasaspaceflight.com/2013/08/japans-epsilon-launch-sprint-a/
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Chris Bergin on 08/27/2013 04:01 am
Is it me, or does this say this is just under nine hours away, when I it should be 45 mins?

http://fanfun.jaxa.jp/countdown/epsilon/epsilon_live.html
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 08/27/2013 04:03 am
Is it me, or does this say this is just under nine hours away, when I it should be 45 mins?

http://fanfun.jaxa.jp/countdown/epsilon/epsilon_live.html

Yes that countdown clock doesn't work unless you are in Japan (it doesn't sense your local time zone settings).  ;)

Try this now if you prefer something other than the official JAXA coverage: http://www.ustream.tv/channel/nvs-live (http://www.ustream.tv/channel/nvs-live)
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: yoichi on 08/27/2013 04:03 am
Live Broadcast
http://www.youtube.com/watch?v=tGrSZO1dlgE
http://www.ustream.tv/channel/jaxa-live
http://jaxa-2013.bmcdn.jp/epsilon-2013/player.html

http://www.ustream.tv/channel/nvs-live
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Chris Bergin on 08/27/2013 04:04 am
Is it me, or does this say this is just under nine hours away, when I it should be 45 mins?

http://fanfun.jaxa.jp/countdown/epsilon/epsilon_live.html

Yes that countdown clock doesn't work unless you are in Japan (it doesn't sense your local time zone settings).  ;)

Try this now if you prefer something other than the official JAXA coverage: http://www.ustream.tv/channel/nvs-live (http://www.ustream.tv/channel/nvs-live)

Ah ha! Thanks :)
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Fuji on 08/27/2013 04:23 am
An expansive and fascinating launch preview/overview by William Graham:
http://www.nasaspaceflight.com/2013/08/japans-epsilon-launch-sprint-a/

Quote
The next Epsilon launch is expected to occur in 2015; two missions are scheduled for that year, with the SPRINT-B and ASNARO-2 satellites. It is currently unclear which will fly first.

The next Epsilon launch is SPRINT-B. ASNARO-2 rocket is still coordination phase.
I'll correct the Japanese launch schedule later.
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Chris Bergin on 08/27/2013 04:24 am
Ok.

T-20 mins and nothing on the webcast side yet.
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 08/27/2013 04:27 am
Try this UStream link: http://www.ustream.tv/channel/jaxa-live (http://www.ustream.tv/channel/jaxa-live)
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Chris Bergin on 08/27/2013 04:30 am
Yep, that's better.

Happy engineer chap:
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Chris Bergin on 08/27/2013 04:31 am
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Chris Bergin on 08/27/2013 04:32 am
Live view.
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Chris Bergin on 08/27/2013 04:34 am
The launch site.
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Chris Bergin on 08/27/2013 04:36 am
Nine minutes to launch.
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Chris Bergin on 08/27/2013 04:38 am
I've seen this before with Japanese launches, where you can send a message of support. It's a very nice idea.
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Artyom. on 08/27/2013 04:41 am
T-5 mins
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Artyom. on 08/27/2013 04:42 am
T-3 m
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Artyom. on 08/27/2013 04:43 am
T-2 m
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Chris Bergin on 08/27/2013 04:43 am
T-120 seconds.
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Artyom. on 08/27/2013 04:44 am
T-60 seconds

Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 08/27/2013 04:45 am
Looks like an abort very close to liftoff....
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Chris Bergin on 08/27/2013 04:46 am
Hmmm, failed to launch?
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Blackstar on 08/27/2013 04:46 am
Sounded like an abort to me.

Counted down to zero and then stopped and nothing happened.
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Artyom. on 08/27/2013 04:46 am
???
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Chris Bergin on 08/27/2013 04:46 am
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Chris Bergin on 08/27/2013 04:47 am
They've got a 45 minute window if they can recycle.
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Artyom. on 08/27/2013 04:47 am
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Blackstar on 08/27/2013 04:47 am
But at least we have commercials to entertain us.
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: input~2 on 08/27/2013 04:47 am
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Chris Bergin on 08/27/2013 04:55 am
35 mins left in the window.
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Artyom. on 08/27/2013 04:56 am
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Chris Bergin on 08/27/2013 04:59 am
There are people on the comment section of the Ustream feed claiming scrub for the day, but a lot of the people on there probably don't know what they are talking about.

Need one of our trusted Japanese people to call it.
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Fuji on 08/27/2013 05:00 am
Scrub! from NHK news
Title: Re: LIVE: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Chris Bergin on 08/27/2013 05:01 am
Thanks Fuji!
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Chris Bergin on 08/27/2013 05:07 am
So we'll leave William's preview intact, bar the obvious scrub note in the abstract. Updated with Fuji's note on the following launches.
http://www.nasaspaceflight.com/2013/08/japans-epsilon-launch-sprint-a/
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: yoichi on 08/27/2013 05:11 am
Junya Terazono 寺薗淳也 ‏@terakinizers  9秒 
Some tweets of my folks says the cause of launch abortion may be anomary of battery voltage needed for launch.
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: jcm on 08/27/2013 05:12 am
press release in a few hours I am told
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Artyom. on 08/27/2013 05:17 am
Epsilon launch fails

The Japan Aerospace Exploration Agency has failed in its attempt to launch the newly developed Epsilon rocket.

The rocket remains on the launch pad at the Uchinoura Space Center in Kagoshima Prefecture, southern Japan, after the scheduled launch time of 1:45 PM on Tuesday.

The Agency says the launch has been aborted for the day. It is trying to determine why the rocket failed to lift off.

http://www3.nhk.or.jp/nhkworld/english/news/20130827_34.html
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: William Graham on 08/27/2013 05:24 am
Epsilon launch fails

The Japan Aerospace Exploration Agency has failed in its attempt to launch the newly developed Epsilon rocket.

The rocket remains on the launch pad at the Uchinoura Space Center in Kagoshima Prefecture, southern Japan, after the scheduled launch time of 1:45 PM on Tuesday.

The Agency says the launch has been aborted for the day. It is trying to determine why the rocket failed to lift off.

http://www3.nhk.or.jp/nhkworld/english/news/20130827_34.html

A little over-dramatic...news organisations need to learn the difference between a scrub and a failure.
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 08/27/2013 05:33 am
Apparently the abort was at T-19 seconds due to an "attitude problem" - probably automatically.
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 06:51 am
According to the official announcement, unknown automatic stop or due ROSE
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 06:55 am
0700UTC press briefing is stated. webcast by NVS.

http://www.ustream.tv/channel/nvs-live
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 07:02 am
It Okumura JAXA President, Yamamoto Space Minister, Fukui Education, Culture, Sports, Science and Deputy Minister, Speakers of the press conference with the Kasai space policy committee chairman. That is, that we do not know what to even hear.
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 07:07 am
Chairman, can I With no apology! Is not it still fails
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 07:09 am
Release came out, but because of abnormal posture detected, and only automatic countdown sequence stopped 19 seconds before launch. Press conference from 1600, only four leaders. I think you do not know exact cause is not a project manager but Morita, unclear whether there is a press conference later this.
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 07:12 am
There is a press conference later this Morita project manager.
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 07:22 am
From the second part technical conference Morita project manager conference
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 07:26 am
Breaking: Naoki Okumura president of JAXA, the apology as "sorry not live up to expectations" be aborted launch of epsilon. Joint communications
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 07:30 am
Because regardless of ROSE, and deviates from the values ​​that were originally set the value of the attitude angle sensor, the cause of automatic stop is stopped. Abnormality was come out roll.
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 07:33 am
Error occurs When I bring up in 20 seconds with the computer.
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 07:36 am
The attitude angle of the roll, the result of the mounting calculator was funny of the gyro that was mounted on PBS. Gyro itself apparently was not funny.
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 07:37 am
When you start the on-board computer 20 seconds before, so gave an abnormal result suddenly, it stopped at 19 seconds.
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 07:39 am
I calculated by the arithmetic unit that piled up in the expected signal from the gyro. Come sent towards the ground station and the results, but was made to start the computation device 20 seconds ago, stopped the result is funny this time. It is not a problem of the gyro, is not a problem of the operational side perhaps? However, because the cause under investigation, the scope of speculation still.
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 07:43 am
I stopped the ground computer detects the threshold anomaly of the number from the computer with
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 07:47 am
"Period is scheduled until September 30 launch, but do not expect to extend to there" Morita
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 07:51 am
Need two days minimum to determine the cause.
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 07:53 am
Thermal battery started in X-15. I was stopped by it.
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 07:55 am
I was shut down automatically heat the battery before starting the 15 seconds before launch. Time-consuming and exchange would start once the thermal battery.
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 07:56 am
Reason for the automatic stop is displayed on the screen. I stopped if there is a display attitude angle that abnormal.
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 07:59 am
Stop to a problem with the attitude JAXA conference, When did you have it?
It on. Control room that stopped at their computers. Ground was stopped "machine will detect
Was confirmed. The lamp with the error "Asahi astronomical
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 08:00 am
I was going JAXA Conference rehearsal, up to 18 seconds.
Because it must be done to ensure safety in that first unit, we can not help but stop the rocket style strictly
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 08:02 am
JAXA conference angle was different how?
"A number of angle about plus or minus one degree"
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 08:04 am
Exit ConferenceMorita project manager Away
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 08:06 am
The launch of the next, it might be three days later at the earliest. According to Morita manager, about half a day, is likely to take about half a day to measures to cause found. "We are determined to take countermeasures immediately at the moment"
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 08:08 am
Huh stop with an error of judgment 1 degree roll angle Puramai. What story is set in the direction to stop actively abnormal slight because it is the first aircraft. Wonder if there is a possibility that you continue not, depending on the setting of the threshold?
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 08:23 am
This is a press conference in response to the launch abort epsilon from 4:00 pm on the 27th.
Is
Attendee
Naoki Okumura JAXA President
Yamamoto Kazuta extraordinary Cabinet Office Minister (space charge)
Fukui illumination Ministry of Education Deputy Minister
Kasai Noriyuki Space Policy Committee

Okumura from Chairman
For that it did not lead to firing as planned as head of JAXA, was sorry to not be able to live up to expectations. I want to try to live up to expectations of the people through the cause future investigation.

Read release announcement
19 seconds ago by detecting abnormal posture Launch

Yamamoto Minister
Minister who came to visit the Uchinoura JAXA since its establishment is the first time, came we make a thought to the universe of Abe Cabinet, but is sorry. Epsilon rocket is essential to ensure the autonomy in the universe basic plan. I want you to launch as soon as possible.

Fukui Deputy Minister
Be done to ensure that the causes is important. It after having taken sufficient measures again, we would like to work towards the launch of the rocket as soon as possible.

Kasai chairman
Basic policy of the universe expanded use of secure and autonomy. One of the nuclear epsilon. I want you to a successful launch by properly determine the cause.

Question-and-answer session after

NHK and abnormal posture detection?
I have the sensor output indicating the Okumura abnormal posture that is abnormal posture. It is considered possible or a few of unusual equipment or a matter of setting value.

It is Yamamoto is also plan to launch a ASNARO2 in the near future Asahi Shimbun
There is no change in government policy that you want to locate the backbone of our country rocket Yamamoto epsilon. I want you to a successful launch as soon as possible.

When will the next launch of the Tokyo newspaper next will be.
It is to be set after the Okumura cause investigation. As you are saying and the Minister as soon as possible, you want to strive to launch early.

Is not it that after two days in Tokyo newspaper.
Okumura cause investigation is the first.


I want to hear the feeling of now Yomiuri Shimbun.
Okumura, because I was expecting as one of the people, it is feeling severe frankly. That we do not know the cause because it is unlikely to be, I believe that we can launch early to determine the cause.

Do you think the review of the Yomiuri Shimbun system.
It might come out by Okumura cause. But the causes are first and foremost.

Question moves to Tokyo venue.
Influence or appear to Nikkei other rocket.
And may be the cause by Okumura, but first it's investigating the cause. , I want to give our best in this.

Tsukuba venue, no question.

Sankei Shimbun Yamamoto minister had said Japanese rocket and accurate at the time at the time of launch H-IIB, but a comment.
Yamamoto sorry. Never space policy of Japan retracts by this. I want to come to re-launch schedule is if someone.

There is also a notion of stopped NVS properly, how do you evaluate
Conceivable Okumura so but first it is investigating the cause.
It is as Yamamoto Okumura president says.

Is over.
http://www.sacj.org/openbbs/
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 08:27 am
Is the second part Morita project manager press conference press conference.

Morita
Launch that I was hoping would be postponed, yet the launch of perfect weather. We even I was sorry but I apologize for inconvenience. I believe that over time a little firm, and want to find the cause and countermeasures.

Artificial intelligence did stop Asahi Shimbun automatic stop. I want to know a little more specific the situation.
It has nothing to do with ROSE in comparison judgment with Morita threshold. Sensor to know the attitude of the three axes of the rocket (gyro) is mounted rocket post boost stage to the (PBS). Was automatically stopped because the relative value set in advance to an apparatus for the automatic inspection, the output of the roll axis exceeds a threshold value.
Abnormality has occurred at the time of mounting calculator to calculate the orientation data based on the output of the gyro, to tell computers ground exactly.

Do you not related to the NHK autonomous inspection.
Whether you are in the threshold Morita just before launch. Autonomous inspection that you would use more upstream of aircraft assembly. It does not matter this time.

What confidence of absolute certainty was talking on NHK pre press conference or was.
Unchanged Morita. It is thought that because that was secured in the correct place, and thing that I found when it should find.

The Asahi Shimbun this is what was within the purview.
The difficult Morita, but do not believe either that there was a thing to unexpected interaction between the computer on the ground and equipped with computer. I believe there are no problems at all aircraft side.

Unknown rocket Did not leaning. Whether there was no abnormality in the sensor.
I have no idea as the Morita.

Or sensors for controlling the posture of the entire rocket Kyodo.
Morita's so.

Time launch of Kyodo News following.
Put a precaution, take measures to Morita, just in case you want to launch in a perfect state by validating measures. I would like to have a little time. I do not believe that it takes up to 30 days in September of last window.

Or abnormal misses soft rather than hard Newsletter computer.
I believe both the current situation Morita.

Or that we did not, consistent with epsilon calculator Mainichi ground side is old.
Morita it is not.

Calculator Yomiuri Shimbun ground what they do. What does it mean that there is a discrepancy in the exchange. Was no abnormal posture of the body,
Morita ground calculator that the output of the installed computer that only compared with the threshold value. Consistency with the exchange is currently being investigated. It is normal has been confirmed and monitored by the telemetry separate sensor output.

Entering fried preparation mode in X-22 seconds according to NHK Kagoshima article, but so what abnormality was found.
Computer begins to compute the X-20 seconds calculation rather than Morita so. I stopped at -19 seconds the results out.

I move to Tokyo Mike venue
Is it I mean that does not matter this time of trouble and prior inspection by the Kyodo news agency AI. Or there is no possibility of mis-configuration of the threshold. Exchange of up to -19 seconds or How was.
It does not matter and artificial intelligence Morita this time. Cause under investigation, including human error. There are no problems as far as the computer is running at -20 seconds. In fact on the relationship between starting the heat disposable batteries in X-15 seconds, rehearsal prior to, was not tested only up to X-18 seconds. Trouble is a translation happened at the very last moment.

About Nikkei schedule outlook.
Half-day, half-day, one day a validation to specific Morita to find the cause. I think two days and I would like to have the time at least. May also be referred to launch three days later shortest at the moment.

Health of the satellite towards the NVS. Thermal battery start to what was said.
No problem Morita satellite. Make it impossible to use when you start once the thermal battery. X-15 running in seconds. It is not running at this time.

From Tsukuba venue
I want to know the detailing did you interact what Yomiuri Shimbun.
Machine is doing all the Morita judgment. By display to man, in the control room, and stopped comes out, we're not know to stop. I began to study hurriedly from there.

It's that automatic stop abnormal posture Kyodo News, but when did it we know that.
I found immediately Morita. Anomaly came to display items that attitude check.

Relationship of trouble and that it has reviewed the Tokyo Shimbun control system. How many seconds before and what did you launch rehearsal. Is there a first unit only trouble.
I depends on finding the cause of Morita future. I'm doing X-18 up to the second, rehearsal. First unit is set to monitor items in acne tighten to launch to ensure absolute safety. I can not help but to stop attitude of even a small concern as possible.

Do you believe that it is not a serious thing much Mainichi this time.
It can not be said so Morita position above, but think that it might be be able to take action immediately.

Abnormality of how much was out at an angle to the Asahi Shimbun concrete.
Set of Morita threshold plus or minus 1 degree. I have an extra output about again it.

Do I say trouble of system of Asahi Shimbun new development.
Can I think so Morita.

Is over.
http://www.sacj.org/openbbs/
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 08/27/2013 08:32 am
From what I can read about the post-scrub press briefing at http://www.sacj.org/openbbs/ (http://www.sacj.org/openbbs/), it looks like the countdown was halted 19 seconds before launch when the on-board computer sensed that gyros were off by more than 1 degree in the roll channel compared with the values sensed by the ground computers, just after the flight model software was loaded and before the switch to internal power. This was not related with the ROSE "AI inspection" system.

Next launch attempt is at least 3 days away.
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 09:13 am
The abnormally sensitive computer on the ground, light is lit, abnormality is displayed on the screen, it seems in the form of the manual stop.
Title: Re: JAXA's solid fuel "Falcon 1"
Post by: beidou on 08/27/2013 10:24 am
The world should keep vigilant for Japan has the capability of developing ICBMs.
Hmmm.....

3 stage solid LV lofting 1.2t

http://www.satellitetoday.com/st/topnews/Details-of-New-Japanese-Cost-Cutting-Launch-Vehicle-Leaked_31916.html
Quote
Eventually, the new rocket may carry a landing vehicle for Japan’s Moon exploration project, targeted for 2020, the agencies said in the reports.

Is it a joke? And '3 stage solid'...'24 meters in length and 2.5 meters in diameter'... nice MX-class ICBM...


Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 10:41 am
Even after three days at the earliest, a typhoon is approaching, because the weather is bad, launch came out could be in September.
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Chris Bergin on 08/27/2013 01:34 pm
Thanks very much for your notes Blister!
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: blister on 08/27/2013 01:43 pm
The abnormally sensitive computer on the ground, light is lit, abnormality is displayed on the screen, it seems in the form of the manual stop.
It seems to have been automatic stop rather than a manual stop.
Title: Re: SCRUB: Epsilon launch with SPRINT-A, August 27 2013 (ETD 0445UTC)
Post by: Prober on 08/27/2013 02:24 pm
http://finance.yahoo.com/news/japan-postpones-launch-cheaper-rocket-051451664.html (http://finance.yahoo.com/news/japan-postpones-launch-cheaper-rocket-051451664.html)
 
AP story has some interesting details.
 
"Japan hopes to compete more aggressively in the international rocket-launching  business. "
more....
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Aug.30)
Post by: blister on 08/27/2013 10:07 pm
They rush epsilon, the cause specific
  August 28, 6:18

New rocket domestic the launch was aborted in the 27th trouble for "epsilon", JAXA = Japan Aerospace Exploration Agency shall be to advance the identification of detailed cause around the computer control room side, consider a new launch date has to.

New domestic rocket by JAXA developed the first time in 12 years, "epsilon" was scheduled to 1:45 pm on the 27th, be launched from Uchinoura Space Center in Kagoshima Prefecture.
However, sensor signal to determine the attitude of the rocket that detects an abnormality is sent, the countdown is suspended in 19 seconds before the launch, the launch of the 27th has been aborted.
Was examined by JAXA, is that the attitude of the actual rocket is normal and abnormal that was not observed in the function of the sensor.
Seeing that there was any problem upon computer control room side receives the data transmitted from the rocket side, JAXA has to be examined mainly on software on your computer for this.
This computer system is one which has been newly introduced to the epsilon of this time to determine automatically prior to firing any failure on the rocket, it is based on that JAXA to identify the cause more trouble, to set a new launch date .
By NHK NEWS
http://www3.nhk.or.jp/news/html/20130828/k10014089731000.html
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Aug.30)
Post by: blister on 08/27/2013 10:15 pm
Interigent solid locket and its revolution by Morita project manerger.
Abstract of Epsilon rocket is writted.(English and Japanese)
It is a reference that easy to understand.
http://www.isas.jaxa.jp/home/rikou/kogata_eisei/symposium/2nd/koto/04.pdf
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Aug.30)
Post by: blister on 08/27/2013 10:38 pm
That there was no abnormality in the attitude of the aircraft aborted launch epsilon turned out

Japan during watched drinking (Katazu) Katazu, I launch new domestic rocket of "epsilon", but just before launch, the system will shut down automatically 19 seconds ago, it was called off. The rocket which carried the world's first automatic inspection systems using artificial intelligence, what happened on earth.
Countdown, which started from the venue.
However, even at the time the launch, there is no situation that moves Epsilon rocket.
Voice leaked "rainy day what? Practice?", "Postponed?", "What's the matter?", And "not up" from the people.
In Kagoshima Kimotsuki town, announce "The cause is unknown, but was called off launch of today" and flows.
from people that moment, was looking forward to the launch, sigh leaked.
The "I or shock. About 15 hours I came all the way took", people who came to see the launch said, "It was a shame".
Suddenly, epsilon was canceled launch.
What happened to the state-of-the-art rocket.
Naoki Okumura, president of JAXA (Japan Aerospace Exploration Agency) said, "the automatic countdown sequence of the rocket, it detects the abnormal posture, in about 19 seconds before launch, was auto-stop" he said.
I was initially announced, abnormalities of the slope of the aircraft has been detected.
That then, there was no abnormality in the attitude of the aircraft, I found Investigators of JAXA.
Currently, detailed cause is that it is under investigation.
's Not abnormal at all to "aircraft, but in a way that reflects on the ground side completely the calculation process, and wonder not There was a part that did not have received. Example Morita Yasuhiro project manager of JAXA now, said, "is where you are studying to think as one of the causes such a thing.
This time, the launch of epsilon, I had a chance to sell to the world space technology in Japan.
Perform the inspection to launch yourself, if you are equipped with artificial intelligence, theory, epsilon, is possible to launch with a single personal computer.
In addition, for about 7.5 billion yen hit the predecessor of "Rocket M5", epsilon and 3.8 billion yen, the launch cost, almost half.
In addition, traditional, work period in the launch site was also shortened to seven days where it took about 42 days.
Except that these will draw attention from the world.
Takamatsu Seiji representative of Arianespace Tokyo office said, "that this launch that was postponed, I think seems like it is not at all that scratch the evaluation of ε" he said.
The Tokyo office representative Takamatsu said companies share No.1, launch "is that be postponed, is that is not limited to epsilon separately, a well anywhere in the world. There is a problem" commercial satellite "The launch of the world to have, and there was some sort of anomaly, that it has shut down automatically to detect it. Given that after that, rocket and satellites as well as in sound condition, that there is no any trouble to launch the next, in a short period of time , were analyzed despite developed in low cost, it's that they are functioning correctly a very system, and "I think that it seems like it is or not does the 'plus evaluation rather.
Currently, Epsilon, was returned to the maintenance building for inspection.
In JAXA, is being re-launch will become the 30th at the earliest.
(08/28 00:44)By FNN News
http://www.fnn-news.com/news/headlines/articles/CONN00252692.html
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Aug.30)
Post by: blister on 08/27/2013 10:53 pm
Epsilon launch abort ... "The shift in attitude" and false positives

Launch new rocket Japan Aerospace Exploration Agency (JAXA Jakusa) was planned in Uchinoura Space Center in Kagoshima Prefecture Kimotsuki town Kimotsuki town in the afternoon on the 27th, "epsilon" of Unit 1, 19 seconds before launch during countdown abnormality is detected, it was discontinued.

There is a possibility that the trouble occurs on the line or computer to manage the rocket. JAXA hurried find the cause, I aim to challenge re-launch early.

Epsilon, was scheduled for launch in 45 minutes 1:00 pm the same day. Computer on the ground side is false positive attitude of the rocket is slightly shifted, it was automatically stopped prior to ignition. JAXA was confirmed by another method, it is investigated looking no abnormalities in the rocket, and there is a possibility that there is an error when the data is sent to the computer on the ground from the computer of the aircraft. Yasuhiro Morita · JAXA professor of epsilon development chief, predicted that the causes and solutions, and takes at least two days in the validation.

(Yomiuri 01:18 at August 28, 2013)
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Aug.30)
Post by: jcm on 08/28/2013 03:08 am
Interigent solid locket and its revolution by Morita project manerger.
Abstract of Epsilon rocket is writted.(English and Japanese)
It is a reference that easy to understand.
http://www.isas.jaxa.jp/home/rikou/kogata_eisei/symposium/2nd/koto/04.pdf


Very nice, with info on PBS:  280 kg mass, 95 kg prop  (not clear if the 95 is included in the 280)
and bonus - FAB picture of THUNDERBIRD 3 on page 3!!!
(very sad they didn't go with that design :-))
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Aug.30)
Post by: blister on 08/28/2013 07:26 am
I think some time also officially announced that it also has contact from JAXA, but to decide the launch date of the Epsilon rocket in August of difficult. It In addition to the anti-cause analysis, and there is also a weather factor by the typhoon approaching weekend.

By NVS twitter
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Aug.30)
Post by: Galactic Penguin SST on 08/28/2013 10:38 am
Not surprisingly the misalignment signal of the gyros were spurious. Extra time required and an incoming tropical storm would however push back the launch to NET September 1st: http://t.co/W8Rgla82q2 (http://t.co/W8Rgla82q2)
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Aug.30)
Post by: blister on 08/28/2013 01:38 pm
[Epsilon] Summary
That we're finished today if only first aid of failure, but it and to postpone the September 11, such as coordination with local and re-rehearsal and Review Board
https://twitter.com/ban_kawakami
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Aug.30)
Post by: Galactic Penguin SST on 08/28/2013 02:07 pm
That will make 2.25 rocket maiden flights in ONE WEEK! (assuming Minotaur V as half a new rocket and F9 v1.1 3/4 of one) :o

Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Sep. 3)
Post by: Fuji on 08/29/2013 12:48 am
[Epsilon] Summary
That we're finished today if only first aid of failure, but it and to postpone the September 11, such as coordination with local and re-rehearsal and Review Board
https://twitter.com/ban_kawakami

Postpone to the September 11 is due to the local lobster festival   :D

Launch target is officially NET Sep.3 (media information).
Sep. 11 is only this twitter source.
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Aug.30)
Post by: Fuji on 08/30/2013 04:32 am
Cause trouble is mismatch of timing (0.07 seconds) between onboard computer and ground computer.

http://www3.nhk.or.jp/news/html/20130830/k10014154571000.html (Japanese)
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Aug.30)
Post by: blister on 08/30/2013 08:24 am
A briefing on the status of the investigation aborted launch Epsilon Launch Vehicle Test strted

From 0700UTC

WEbcast by NVS

http://www.ustream.tv/channel/nvs-live
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Aug.30)
Post by: blister on 08/30/2013 08:39 am
Conference Bulletin

Conference abort launch will begin soon . Speakers is Morita 's project manager

Morita . Beginning , the apology as " sorry " about the emergency stop launch . " Support of all of you gave me the push back up here . Work hard so as to be delivered the moment of successful launch "

It seems to have determined for monitoring by the cause ground equipment of discontinued launch the known at this time was faster in 0.07 seconds from computer mounted on the rocket , that there is a problem with the attitude of the rocket apparatus on the ground .

Modified for at rehearsal that I did on the 20th , setting the value of the monitoring of ground equipment was not appropriate , but the rehearsal the next day is not until the turn of the launcher for the rain , I did not notice at the time shift that caused this That's right

Postponed the launch of ε the second time . " Overhaul during which gave a collective effort of JAXA " . Since the re- set the launch date after being based on the results , the next launch date is likely not determined .

Launch date of the next Although not yet determined , the first question to the schedule . But Morita 's " I can not read at all day , it should hit in early September "

Is conducting an overhaul of staff no matter where you launch also made ​​in JAXA. A new bug is likely to have been found at this time .

Question in the conference , the deviation of 0.07 seconds was the reason for the launch abort . The signal sent from the control center on the ground , shift seems I caused to the difference reaching the computer mounted on epsilon .

It was log analysis in rehearsal , but so did not notice the deviation of 0.07 seconds confirmation is insufficient .

Topic at the conference in rehearsal . Delay of monitored for ( error ) , the first place we did not assume , it seems did not notice .

Even launch remains of error of 0.07 seconds , the impact is not likely to fly .

"We can not launch the new monitors fully automatic as of this time if you do not Ika to overcome these things . Lifeline of ε " Morita . There is no error in the design , does not seem to impact on the next Unit later .

Effect of launch abort . That there is no effect on the other parts . SPRINT-A mounted so is okay .

Morita " I had wanted to take immediately measures , but full not only fix the place funny simply , you want to examine calmly , if there are any symptoms that are these others. Moreover I want to challenge you to launch more reliable "

Members of the team epsilon Do not dented ? Morita in question . "The most painful it is placed in the painful situation . Mental members . But Tachinaoreru Compared to struggle for seven years "

In addition , the question to launch day . " As difficult . We answer at the moment and work hard to become . Teamwork to beat doing what to do " . I guess would do such time when ...

Press conference has ended .

Asahi Shimbun digital astronomical unit twitter
https://twitter.com/asahi_tenmon
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Aug.30)
Post by: blister on 08/30/2013 09:06 pm
Investigate the causes of the press conference launch abort testing machine epsilon
35 minutes Posted by Shibata Komei Saturday 05 at August 31, 2013 Posted
From 16:30 August 2013 , " the causes situation Press Conference of launch abort epsilon tester " was held in Uchinoura Space Center .

· [ Presenter ]
Japan Aerospace Exploration Agency Space Transportation Mission Directorate Epsilon rocket project team project manager Yasuhiro Morita
· Description assistant ]
Japan Aerospace Exploration Agency Space Transportation Mission Directorate Kagoshima Space Center launch site technology development chief ( launch control team planning chief ) Hiroyuki Osada

Morita , from project manager
By launch Epsilon rocket long-awaited made ​​an emergency stop in the fire just before , everyone in the universe fans nationwide , everyone of Uchinoura , everyone who came to cheer on the local , everyone , reporters who have support from all over the country with JAXA broadcasting etc. I think everyone , and sorry for the inconvenience for those various . 7 years have passed since the MV rocket , it was this far finally in support of the more variety . Because we will work well in the future to guarantee success , I ask for support in the future .

· History of launch abort
Toward launch of 00 seconds 45 minutes at 1.13 , and started the automatic countdown sequence to 70 seconds before the launch time .
2 . To start with calculator rocket (OBC) in the signal from the ground equipment (LCS) to 20 seconds before launch . OBC has started the posture calculation rocket after 1 second .
※ LCS: This is a ground equipment for operating remotely launch inspection and Epsilon rocket , it is in epsilon control center of Miyahara district a distance of about 2km from ( mu ) plateau M is the launch point of the rocket . So-called mobile control device .
※ OBC: on-board computer with epsilon .
3 . Started to monitor the attitude data from 19 seconds before launch in LCS , but was automatically stopped by detecting the abnormal posture roll .

· Cause known at present is as follows . Future , I do a more detailed investigation cause . In addition , to validate over time that there are no other causes .

1 . For monitoring by (LCS) ground equipment was faster in about 0.07 seconds from pose computation start with Calculator (OBC), ( ground device before receiving the correct data ) it is determined that the abnormal posture , and automatic stop .
2 . That, in addition to that it had set stringent monitoring time automatic stop so as to be subjected immediately when abnormal data is indicated, it was not possible to consider the time lag of the ground equipment and with the computer causes the deep it is just going to regret .
It was not possible in rehearsal was performed within 21 days 20 and 3.8 months , was performed to confirm the entire system by flowing the countdown sequence up to 18 seconds before launch , it is detected by the following reasons matter.
• The rehearsal of the 20th August , by performing the launcher pivot state equipped with a rocket for the first time , you get the attitude data . As a result , it knows that the monitoring setting of ground equipment is not appropriate , were excluded from automatic stop items .
• The rehearsal of August 21 , it was the appropriate changes to the monitoring set value, but without turning launcher by bad weather , and simulating the countdown sequence .
4 . After the end of the rehearsal , it was confirmed the validity of the monitoring set value by the evaluation of the acquired data , but I did not lead to up to a small time gap of about 0.07 seconds .

And response status
As a countermeasure to this event , it is determined if the cause of this , we study in the direction of changing the monitoring period in consideration of the time lag and ground equipment with a computer .
It is expected , such as whether there is a case to light of the events of this time together , like in monitoring other items , to conduct a re- inspection thoroughly , completeness towards the launch of the next .
For the postponement of the second time , not Sumasa in measures of direct cause simply , we overhaul all out of JAXA, go raise the probability of success more already . Because based on the results of the overhaul , we measure again and make the resumption of work launch , can not be decided at time of launch today .


- Q & A
It's that you and not decide to launch KTS · time , but where the ( until 30 September ) window or likely . It had said the Minister of Education would like to launch early in September .
It is difficult Ku terribly Morita . Implementation methods and overhaul , for the reflection of the result , I can not read it or be how much . Because it is an important first unit , absolute success is the goal , not to fetter the time .

The deviation of the Yomiuri Shimbun , 0.07 seconds, and said what to a cause . Is it because such distance to the control room is longer .
We believe that issues a command of start -board computer from the computer of Morita - ground , but the time and took to transfer there . May be caused also the distance , but also because of delays in processing , cause not one .

Only say that it was not appropriate in rehearsal of Kyodo News , the 20th , but the problem of 0.07 seconds did not come out at that point .
I did not be identified at the time that Morita , but shift was happening in the subsequent analysis it has been confirmed . It was not clear , it is in the fact that his team was overlooked . Night of the 27th , I noticed in the analysis of the automatic sequence after stopping firing.

The time Start-up activities Kyodo News da , is there a possibility that more than ( September 30 ) window . What happens if I exceed .
I According to the results of Morita and re- inspection . I want to make an effort to increase in the window . If it is expired , it means that the setting of a new window.

It is a shift in the Sankei Shimbun , 0.07 seconds , the time it was allowed to this or how much . Previous examples How was .
To strictly monitor originally Morita , it was that there is no time difference . And not that good even half and had to be small enough. There is no precedent this decision because it is the first time .

I've heard it was the latest equipment of Kyodo News , above ground , equipped with latest equipment and do you was up to date .
And computers Morita Gyro is a new one that was minor change in ε for the equipment of the H-IIA for . In addition , this diversion is not the cause of the problem .

You can do the Sankei Shimbun and re- rehearsal .
Is being considered , including Morita it .

At the stage of the 20th - Minaminihonhoso , displacement or had already occurred .
Shift was happening in the street that Morita . Some inevitable , and reproducible .

What members of the project team of southern Japan newspapers, overhaul or made ​​.
Corps launch Nagata , we also so stakeholders , you will get done in the perspective that you have collected from each division of JAXA does not relate to launch , different . Has begun a review experts already , but possibly in other departments of internal JAXA future in all others .

There is a problem , other problems in southern Japan newspapers and time.
It is not the Morita - time.

It is a shift of KYT · 0.07 seconds, but carried out in the 19 seconds before , (LSC) is what was earlier the ground .
Is a Morita so . It is a state in which the data side of the aircraft has not yet come .

Monitoring items KYT · 20 days what was loose .
Was allowed to pivot from the launcher Morita service tower , the initial value of the angle had shifted twice to that of mounting . I have changed the threshold for that .

The time to you KYT · consider either the fact loosen monitored.
Instead of Mel slow Morita , changing the start timing of the monitoring .

Or was aware of rehearsal and 21 Minami Nippon newspapers and 20 days if was done as expected .
Morita very Regrets physicians remain , but could be detected if you do it rain without rain .

Do you not think that you do a rehearsal once again after the south Nippon newspaper , the 21st .
Launch date may be delayed and do the Morita it . Check this item is simple , I was man and settle If you check the data later .

Reasons for the deviation of 0.07 seconds , Mainichi Shimbun has occurred .
As a Morita major factor , it is a processing time of a computer in the transmission path of the installed equipment . I was delayed 0.07 seconds instruction will reach the OBC from LCS.

Delay of 0.07 seconds this Kagoshima TV is what always occur .
Exactly Morita .

It is 0.07 seconds this Kagoshima TV but , or that we did not consider the transmission time .
Sends a start signal from the LCS to 20 seconds before Start-up activities Morita da , I send the attitude data to LCS from OBC to 19 seconds ago, but time that you had with 19 seconds before the OBC is launch , it has been slow 0.07 seconds from LCS made .
This was not found to be not turning the launcher .

For representation of Kagoshima TV and materials of " I did not reach " , and what that means .
It is the sense that I realized if people you want to map Morita care .

You did notice it if you have not been excluded from the item of automatic stop in western Japan , the 20th .
For values ​​that are not Morita and appropriate , had been removed as it can not properly monitor . If you were correct item at this time , I was aware of .

Yomiuri Shimbun - Is this a problem of processing or , or transmission loss .
But not both zero for Morita physically , 0.07 seconds This is not a transmission loss , it is considered an operational delay in computers in the transmission line as a major factor .

Tokyo venue
The delay of the newsletter , 0.07 seconds , do you not incorporated in the specification . Do not occur in other parts .
To be honest it 's missed as Morita and specifications . There is no error in the design , except that there is a delay for setting the timing of the monitoring was missing .

By Remove the rehearsal of the 20th newsletter and inspection items , and that it did not turn in the bad weather on the 21st , or there was no mechanism to check the leakage of inspection items .
I think Morita this is not a leak . I was thinking to be able to be confirmed in the same way as when you make a rehearsal by the analysis of the log . It was not enough as the point of view of confirmation .

Or one-way , or not round-trip delay of free Otsuka 0.07 seconds .
It is only 0.07 seconds Morita way . Time stamp is attached to the data since startup of OBC.

What kind of equipment free Otsuka or were delayed .
It was late when you through the ROSE as a Morita major factor . Influence of the elements fine transmission path is small.

When rehearsals free Otsuka the 20th , monitoring set value is not appropriate, do you noticed .
It was just before the Morita rehearsal . Originally is plus or minus one degree around the zero , plus or minus one degree , that is three times from twice is correct about the twice correctly .

There has exceeded the threshold value of the roll axis to free Otsuka the 27th , but the relationship between the delay of 0.07 seconds or whatever they . Or that the problem that did not stand the value of the pitch and roll because it is zero .
Monitoring settings instantaneous value of Morita firing was set to 3 degrees once . It is the correct process to have made ​​twice , this is to pass as it's within the range after the start of operation after turning . Because this was delayed 0.07 , and became foul zero before the operation to come . Pitch and roll is zero originally , I did not become a problem even if there is a delay .

There is a problem of thermal battery as a cause that can not be rehearsal only to Nikkei BP · 18 seconds ago , the cost of this . If you use this in rehearsal .
Now there is no data Morita cost . However, rather than cost , the problem of thermal battery is a preparation period . It is not used only once in what generate electrical power in gunpowder , and take two days at least and to replace . This is the same from the time of the MV rocket .

The person who did it if you can exchange Nikkei BP · 2 days or not than good .
To become unusable once , Morita thermal battery is not a test of the real .

If you ask start the Nikkei BP · thermal battery , is not it can be confirmed that the operation of the part of the other .
Test of roll angle is required turning the launcher example Morita example , but I can also not issue a launcher for the thermal battery . Test can be in the assembly process of the rocket thermal battery . Because it is the same time be tested , it is done at the factory with a view should be to test as early as possible .

There was trouble in the NHK · rehearsal , but overlooked cause of this delay . Or other disruptions .
Instead had overlooked Be troubles Morita et al , since it did not take into account the delay in the monitoring field .

Did no one see this number NHK ·.
Morita people than see , it has been doing in or do not pass either through the process of automatic monitoring . Since the roll angle had a test that also OK 0 degrees , the time difference is not a problem .

For the late of NHK · 0.07 seconds, and did not assume the time of communication , or time it took more than the imagination .
Morita is the former .

Cause of the Tokyo Shimbun , automatic stop or did not take into account the delay of ROSE.
It appears that not only Morita · ROSE, there is a delay among the OBC, this event has occurred regardless of the presence or absence of ROSE.

Is it how was in Tokyo newspaper · MV.
There is no automatic judgment in Morita · MV, people were doing .

What was supposed After firing while there is a lag Tokyo newspapers .
I believe there would have been no effect on the flight itself Morita is difficult , even if the fire temporarily .

About the increase in cost due to the Tokyo Shimbun , postponed .
Exact amount Nagata , now does not go out , but I will be personnel and troubleshooting , money factor takes the sea and land by a new set launch date , cost increases than when on the 27th of the original .

It is a translation to become a monitoring time in consideration of the delay , but now Yomiuri Shimbun , do we mean to measures in the software because it is impossible that hard .
Monitoring settings Morita These are intended to be set in the software originally .

Or that the problem that occurred to the function of the newly developed in the Yomiuri Shimbun epsilon .
It worked well in that it points out the part that does not think of Morita people . If you do not Ika overcoming reviews these , one firm can not .

Yomiuri Shimbun , future , is there any impact on Unit 2 or later .
No problem to Morita computer . This is a problem in the software of the monitoring system . There is no need for hard change of Unit 2 .

Is there a delay when the data is returned to the Asahi Shimbun · LCS.
Morita not it time stamped so stick to the data .

Is there something you need a replacement stop by Start-up activities Asahi Shimbun da .
We have been the Morita study , but there is nothing to be replaced immediately . I have a washout because there may be things that need to be inspected again time has elapsed .

There was impact on the satellite by the Asahi Shimbun , stop .
There is no problem Morita epsilon so live a high air cleanliness until shortly before launch .

Measures how not difficult to be limited to only a matter of Kyodo News , 0.07 seconds .
As the Morita , I need in rework some . Verification measures and requires only a day or two . However, because a delayed a second time , the time required to perform the confirmation of other events .

Do you check by decomposing the aircraft at Kyodo News and re- inspection .
Because I already seen the event other than this Morita rehearsal , to check if there are any items that are missing in the rehearsal , whether there is a problem in 18 seconds later X minus . There is no such thing as to decompose the rocket .

It's that 0.07 seconds and was delayed in delay of computer or NHK · some , but it did delay anywhere in the part specifically .
Morita large delay is a part that receives the instruction and pass in the ROSE, at the entrance of the OBC.

Or that there was a problem with the NHK · ROSE.
Not Morita so . Delay occurs in the subject of OBC and passage of ROSE It is inevitable originally .

Or did not know in advance the delay that course NHK ·.
In Morita automatic monitoring , I did not have to reflect the delay it is a fact .

I was saying anxiety is less about the size of confidence in the conference before raising Location: Japan Broadcasting da , but about the little anxiety , this or that it could not turn launcher at rehearsal .
Through the conduct measures in part that was overlooked in the rehearsal of Morita this time , make a special inspection wide field of view further , confidence ε is unwavering .

What is the difference between outlook after discontinuation of up Location: Japan Broadcasting da , and think of now .
The Start-up activities after discontinuation Morita da , I thought it is possible to also specific phenomenon , it would strike immediately . However , it is not intended to that I should fix the problem situation reaches here , it must not fare well calmly third parties , including not only measures may indicate nothing is hidden directly .

Is there a recognition of that Nippon Broadcasting and prospects is was sweet .
Have you ever could not suppress the feeling that you catch on Morita , but it will be not only measures in this event , and the refocus firm , to face to launch with everything to do every thing is that the best .

Or to monitor signal has arrived as a measure of free - Akiyama future .
Exactly Morita . I would like to start monitoring at the timing of reach .

Is it to stop , or if the data does not arrive at all due to a problem with because of free - Akiyama another .
Because only changes the time of the Morita and monitoring start , and not the failure of the other occurs.

Dear writer Kita team have not dented . What to do maintenance of motivation as a leader .
It came around the clock while tension towards the 27th Morita August , but tough to mentally overhaul . But the original goal is a successful launch of epsilon . Think I do not know what more days or take , but that it might be he really do my best when compared to the seven years of struggling , I want to lead the firm .

· Uchinoura venue
It is the spirit of the Sankei Shimbun and done , but carefully , because there is preparation of various fields , I want to ask you how long will it take for the fastest .
It is difficult to be before the special inspection begins in Morita time. But not put an unlimited time .

Position of OBC is somewhere in the Kyodo news agency rocket .
Instrument of the Morita - epsilon but ( third stage ) , there is a fourth stage in the option form first unit , I in that part . It is the same position as the orientation sensor .

Number of Kyodo News , experts or become much .
It is to be determined team leader and now Nagata - appointment . We consider to be a dozen scale .

Is over .

Space writer club news bulletin
http://www.sacj.org/openbbs/
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Sept 3)
Post by: yoichi on 09/01/2013 07:49 am
(timelapse)Epsilon launch attempt in 5 min.
http://www.youtube.com/watch?v=xUkFQb_orlE
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Sept 3)
Post by: Galactic Penguin SST on 09/03/2013 07:00 am
Any new launch date rumored by now?  ???
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Sept 3)
Post by: Galactic Penguin SST on 09/04/2013 02:23 am
Any new launch date rumored by now?  ???

Apparently JAXA is still investigating the time syncing problem so no new launch date has been decided yet.

Source (http://headlines.yahoo.co.jp/hl?a=20130904-00000012-asahi-sci) (Japanese)
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Sept 3)
Post by: blister on 09/04/2013 08:59 am
Situation of epsilon has been described in space development and utilization Subcommittee today, was held at the Ministry of Education. At this stage, check team organized independent, it becomes the status during inspection. About the causes of situation stop launch Epsilon Launch Vehicle Test | JAXA

http://www.jaxa.jp/press/2013/09/20130904_epsilon_j.html

By NVS Twitter.
https://twitter.com/nvslive
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Sept 3)
Post by: blister on 09/04/2013 09:04 am
Talk of a new launch date of Epsilon does not seem out of place now.

By Komei Shibata's Twitter

https://twitter.com/koumeiShibata
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Sept 3)
Post by: input~2 on 09/04/2013 12:27 pm
Talk of a new launch date of Epsilon does not seem out of place now.

By Komei Shibata's Twitter

https://twitter.com/koumeiShibata (https://twitter.com/koumeiShibata)

A more precise translation is:
"Talk of a new launch date of Epsilon does not seem to come out so far"
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Sept 3)
Post by: Galactic Penguin SST on 09/06/2013 04:37 am
It looks like the launch team has did a simulated countdown yesterday from T-70s down to T+5000s - presumably to pin down the exact problem with out-of-sync computers and implement software changes.

BTW this problem was not found during the launch rehearsals on Aug. 20 and 21 - the first time due to that the rocket attitude data being fetched for the first time ever with the rocket swung out, and the second time due to the launch sequence being simulated with the rocket enclosed in the service structure in bad weather.

Source: http://www.jaxa.jp/press/2013/09/20130904_epsilon_j.html (http://www.jaxa.jp/press/2013/09/20130904_epsilon_j.html)

https://twitter.com/koumeiShibata (https://twitter.com/koumeiShibata)
Title: Re: SCRUB: Epsilon launch - SPRINT-A, NET Sept.
Post by: Chris Bergin on 09/06/2013 10:36 am
I'm going to lose track of this one so I'd really appreciate it if someone could PM me if and when they do set a new date.
Title: Re: SCRUB: Epsilon launch - SPRINT-A, NET Sept.
Post by: input~2 on 09/07/2013 03:43 pm
I'm going to lose track of this one so I'd really appreciate it if someone could PM me if and when they do set a new date.
http://www3.nhk.or.jp/news/html/20130906/t10014347271000.html (http://www3.nhk.or.jp/news/html/20130906/t10014347271000.html)  (in Japanese)

AFAIU, there will be a new launch rehearsal to-morrow Sept 8. If everything is OK, JAXA will then decide on a new launch date.
Title: Re: SCRUB: Epsilon launch - SPRINT-A, NET Sept.
Post by: yoichi on 09/08/2013 02:03 am
launch rehearsal in progress.
http://www.ustream.tv/channel/nvs-live
Title: Re: SCRUB: Epsilon launch - SPRINT-A, NET Sept.
Post by: blister on 09/08/2013 11:29 am
Towards the re-challenge of the new rocket has postponed the launch in trouble "epsilon", Aerospace Exploration Agency (JAXA) was carried out at the rehearsal Uchinoura Space Center in Kagoshima Prefecture Kimotsuki town. 8 days, to confirm the results, to determine the launch date.

Sankei web
http://sankei.jp.msn.com/science/news/130908/scn13090812010000-n1.htm
Title: Re: SCRUB: Epsilon launch - SPRINT-A, NET Sept.
Post by: blister on 09/08/2013 12:25 pm
That he watched the local news of Kyushu NHK, and they discussed internal JAXA day after tomorrow and tomorrow the result of epsilon rehearsal today.

Twitter
https://twitter.com/mitsuto1976
Title: Re: SCRUB: Epsilon launch - SPRINT-A, NET Sept.
Post by: blister on 09/08/2013 12:31 pm
"The results of the rehearsal is to turn out it is expected two days later at the earliest, but if you are satisfied with the result, to determine as soon as possible launch date": Nihon Keizai Shimbun
http://www.nikkei.com/article/DGXNASFK0800N_Y3A900C1000000/
Title: Re: SCRUB: Epsilon launch - SPRINT-A, NET Sept.
Post by: Galactic Penguin SST on 09/08/2013 12:31 pm
That he watched the local news of Kyushu NHK, and they discussed internal JAXA day after tomorrow and tomorrow the result of epsilon rehearsal today.

Twitter
https://twitter.com/mitsuto1976

So a decision will be made NET Tuesday.

For some reason I have the feeling that the next attempt will come on 9/17 - that will mean I probably will have a Proton launch for (early) breakfast, this one for lunch, Antares/Cygnus for (late) dinner that day and an Atlas V for tea the next day.  :P
Title: Re: SCRUB: Epsilon launch - SPRINT-A, NET Sept.
Post by: yoichi on 09/09/2013 08:05 am
http://www.jaxa.jp/press/2013/09/20130909_epsilon_e.html (http://www.jaxa.jp/press/2013/09/20130909_epsilon_e.html)

New Launch Day Information for Epsilon-1 with SPRINT-A Onboard
September 9, 2013 (JST)
Japan Aerospace Exploration Agency (JAXA)

The Japan Aerospace Exploration Agency (JAXA) decided to postpone the launch of the first Epsilon Launch Vehicle (Epsilon-1) with the Spectroscopic Planet Observatory for Recognition of Interaction of Atmosphere (SPRINT-A) onboard on August 27 from the Uchinoura Space Center.
 As a result of our cause investigation of the postponement and re-examination of the Epsilon-1, the new launch date will be September 14, 2013 (Japan Standard Time) or later.
Title: Re: Epsilon launch - SPRINT-A, NET Sept.14, 2013
Post by: blister on 09/09/2013 12:11 pm
The new launch date will be September 14, 2013 near1400 (Japan Standard Time)

By NHK NEWS WEB
http://www3.nhk.or.jp/news/html/20130909/k10014404381000.html (http://www3.nhk.or.jp/news/html/20130909/k10014404381000.html)
Title: Re: Epsilon launch - SPRINT-A, NET Sept.14, 2013
Post by: Chris Bergin on 09/09/2013 12:16 pm
Super! Thanks for keeping an eye on this guys.
Title: Re: Epsilon launch - SPRINT-A, NET Sept.14, 2013
Post by: blister on 09/09/2013 12:27 pm
The launch date is a representation of subtle and "14 after" the weather has to imagine the cause. Briefing of Y-1 because it is the 13th, it will be the 14th weather permitting. He think time zone will become the announcement now launch more.

By Koumei Shibata's twitter
https://twitter.com/koumeiShibata (https://twitter.com/koumeiShibata)

By JAXA Press Release
http://www.jaxa.jp/press/2013/09/20130909_epsilon_e.html (http://www.jaxa.jp/press/2013/09/20130909_epsilon_e.html)
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (~0500UTC)
Post by: blister on 09/11/2013 12:33 am
Briefing concerning special inspection and circumstances stop the causes and countermeasures Launch Result Epsilon Launch Vehicle Test

Time:(Wed) 0500UST (tentative) September 11
Location: JAXA Uchinoura Space Center
Sub Venue: JAXA Tokyo office (video conferencing) relay from here
Rostrum schedule:
JAXA overall reliability / technology advisor
(Epsilon Launch Vehicle Test special inspection team team leader) Nobuo Takeuchi
JAXA Epsilon rocket project team project manager Yasuhiro Morita

Webcast by NVS
http://www.ustream.tv/channel/nvs-live

Twitter by Asahi Shimbun digital astronomical unit
https://twitter.com/asahi_tenmon
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (~0500UTC)
Post by: Galactic Penguin SST on 09/11/2013 06:46 am
Briefing concerning special inspection and circumstances stop the causes and countermeasures Launch Result Epsilon Launch Vehicle Test

Time:(Wed) 0500UST (tentative) September 11
Location: JAXA Uchinoura Space Center
Sub Venue: JAXA Tokyo office (video conferencing) relay from here
Rostrum schedule:
JAXA overall reliability / technology advisor
(Epsilon Launch Vehicle Test special inspection team team leader) Nobuo Takeuchi
JAXA Epsilon rocket project team project manager Yasuhiro Morita

Webcast by NVS
http://www.ustream.tv/channel/nvs-live

Twitter by Asahi Shimbun digital astronomical unit
https://twitter.com/asahi_tenmon

Briefing concluded - there isn't a lot of new things announced except that it seems the time syncing problem between the ground and on board computers have been resolved in two launch sims done on Sept. 5 and 8. Interestingly JAXA still hasn't officially endorsed the Sept. 14 date - it was announced that this will come tomorrow, apparently because the team is still looking at the weather (although a quick check reveals no concerns with the weather at launch time).
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (~0500UTC)
Post by: blister on 09/11/2013 11:37 am
According to the mass media in Japan, that Epsilon rocket with the preparation towards the launch of the 14th afternoon.

NHK NEWS Web
http://www3.nhk.or.jp/news/html/20130909/k10014404381000.html

Yomiuri Newspaper Web
http://www.yomiuri.co.jp/science/news/20130911-OYT1T01051.htm?from=rss&ref=rssad

Sankei Newspaper Web
http://sankei.jp.msn.com/science/news/130911/scn13091117050002-n1.htm
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (~0500UTC)
Post by: Galactic Penguin SST on 09/12/2013 04:11 am
New launch attempt on September 14 04:45 - 05:30 UTC officially confirmed: http://www.jaxa.jp/press/2013/09/20130912_epsilon_e.html (http://www.jaxa.jp/press/2013/09/20130912_epsilon_e.html)
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: input~2 on 09/12/2013 10:05 am
[NAVTEX Navigational Warnings]
SHIONO MISAKI

NO.13-2428        Date:2013/09/12 05 UTC
SHIONO MISAKI, SOUTHEASTWARD.
ROCKET, EPSILON-1, LAUNCHING.
IMPACT HOUR 140454Z TO 140555Z SEP.
IMPACT AREA BOUNDED BY
30-36-00N 137-53-00E
30-55-13N 138-51-18E   
30-53-52N 139-04-49E   
29-53-00N 139-26-00E   
29-29-00N 138-16-00E.

WESTERN NORTH PACIFIC.
ROCKETS.
1. HAZARDOUS OPERATIONS:
A. 140454Z TO 140555Z SEP IN AREA BOUND BY
30-36-00N 137-53-00E, 30-55-13N 138-51-18E,
30-53-52N 139-04-49E, 29-53-00N 139-26-00E,
29-29-00N 138-16-00E.
B. 140504Z TO 140607Z SEP IN AREA BOUND BY
26-45-00N 167-36-00E, 26-35-00N 172-21-00E,
23-35-00N 172-15-00E, 23-45-00N 167-30-00E.
2. CANCEL THIS MSG 140707Z SEP 13.//

Authority: NAVAREA XI 673/13 120503Z SEP 13.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 09/13/2013 09:44 am
Use this for the live broadcast tomorrow: http://www.youtube.com/watch?v=TSPzeSnSplM
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: russianhalo117 on 09/13/2013 11:04 pm
The Live Youtube Webcast for the launch is now less than 5 Hours now until jaxachannel starts Live Broadcast.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: russianhalo117 on 09/14/2013 12:01 am
The Live Youtube Webcast for the launch is now less than 4 Hours now until jaxachannel starts Live Broadcast.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: yoichi on 09/14/2013 12:05 am
Uchinoura this morning.
from
https://twitter.com/rocketfes/status/378647997665382400/photo/1
http://twitpic.com/ddcpb3
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: russianhalo117 on 09/14/2013 01:01 am
The Live Youtube Webcast for the launch is now less than 3 Hours now until jaxachannel starts Live Broadcast.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 09/14/2013 01:54 am
The rocket is being swung out of the service tower right now.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: russianhalo117 on 09/14/2013 02:04 am
The Live Youtube Webcast for the launch is now less than 2 Hours now until jaxachannel starts Live Broadcast.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 09/14/2013 03:32 am
T-1hr 15 minutes. Apparently it's quite windy out there today due to an incoming typhoon, but wind limits seems OK for launch.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: yoichi on 09/14/2013 03:32 am
https://twitter.com/asahi_tenmon/status/378713813148659712/photo/1
https://twitter.com/kuroi_buncho/status/378701933436878848/photo/1
https://twitter.com/ShinyaMatsuura/status/378708722186342401/photo/1
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 09/14/2013 03:58 am
Live coverage about to start....
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 09/14/2013 04:03 am
Live coverage about to start....


Hmm......haven't started yet?  ::)

This one doesn't start either: http://jaxa-2013.bmcdn.jp/epsilon-2013/player.html (http://jaxa-2013.bmcdn.jp/epsilon-2013/player.html)

EDIT: Hmm someone please call the JAXA PAO - apparently it shouldn't start until 04:25 UTC (20 minutes from now).  ???
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 09/14/2013 04:10 am
.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Blackstar on 09/14/2013 04:23 am
Reminds me of a line from "The Hitchhiker's Guide to the Galaxy":

"For a moment, nothing happened. Then, after a second or so, nothing continued to happen."
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 09/14/2013 04:23 am
Apparently there are about 20000 people visiting the launch site for this launch - not a bad turnout, although nothing can beat the STS-135 1 million record!  ;)

Live coverage starts soon....
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Blackstar on 09/14/2013 04:25 am
.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: yoichi on 09/14/2013 04:25 am
http://www.ustream.tv/channel/nvs-live
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: yoichi on 09/14/2013 04:29 am
launch time channged 13:45 to 14:00 JST.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 09/14/2013 04:32 am
launch time channged 13:45 to 14:00 JST.

Apparently it's due to the good old "ships in the drop zones" issue.  ::)
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Blackstar on 09/14/2013 04:40 am
So help me out. Does that mean the launch is in about 20 minutes?
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 09/14/2013 04:42 am
Let's GO!  :)
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 09/14/2013 04:44 am
.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 09/14/2013 04:49 am
Those watching at NSF please help with the screenshots.....  ;D
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: yoichi on 09/14/2013 04:50 am
Junya Terazono 寺薗淳也 ‏@terakinizers  12秒 
Satellite sequence start. Rocket preparation ready at X-15
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: rickl on 09/14/2013 04:56 am
.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Blackstar on 09/14/2013 04:57 am
.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 09/14/2013 04:57 am
.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 09/14/2013 04:58 am
T-3 minutes
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: rickl on 09/14/2013 04:58 am
.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Fuji on 09/14/2013 05:01 am
Launch !! (From NHK TV)
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: rickl on 09/14/2013 05:01 am
.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: rickl on 09/14/2013 05:02 am
.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: rickl on 09/14/2013 05:05 am
Second stage ignition
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Fuji on 09/14/2013 05:06 am
2nd stage burn out.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: yoichi on 09/14/2013 05:08 am
http://www.ustream.tv/channel/nvs-live
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 09/14/2013 05:09 am
Long coasting (compared with Vega, Minotaur etc.) to 3rd stage ignition. The stack will be spun up before ignition.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 09/14/2013 05:12 am
3rd stage now burning.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Fuji on 09/14/2013 05:13 am
3rd stage burn out.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: rickl on 09/14/2013 05:13 am
Third stage burnout.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: rickl on 09/14/2013 05:16 am
Rocket cam footage.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Fuji on 09/14/2013 05:23 am
Next event.
1st PBS burn    L+19m 8sec (Now burning)
1st PBS cutoff   L+29m58sec
2nd PBS burn   L+53m50sec
2nd PBS cutoff L+60m30sec
Sprint-A separation L+1h01m40sec.
 
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 09/14/2013 05:30 am
Post-boost stage 1st burn completed - stack now coasting for 30 minutes for another 6.5 minute burn.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Fuji on 09/14/2013 05:58 am
2nd PBS ignition.  Alttitude 1,148km.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 09/14/2013 06:03 am
Spacecraft separation!
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Fuji on 09/14/2013 06:03 am
Separation confirmed!
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: anik on 09/14/2013 06:13 am
Congratulations! It was the first orbital launch from Uchinoura since 2006. Also it was 36th orbital launch from Uchinoura and 93rd orbital launch from Japan.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: rickl on 09/14/2013 06:16 am
Although I can't speak Japanese, it sounds like everything is going OK.  Congratulations, JAXA!
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: dawei on 09/14/2013 06:16 am
Congratulations to all involved!
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: yoichi on 09/14/2013 06:26 am
http://www.youtube.com/watch?v=TSPzeSnSplM
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: jcm on 09/14/2013 06:29 am
Congratulations to JAXA!

From the velocities quoted on the feed, looks like there should be three objects in orbit - SPRINT-A and PBS,
and then the stage 3 in a lower orbit.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 09/14/2013 07:57 am
SPRINT-A is now named "Hisaki" - "cape of fire" - referring to the fact that its observing targets are all under the effect of the Sun, as well as a cape near its launch site.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Artyom. on 09/14/2013 09:29 am
My congratulations  :) !
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: chewi on 09/14/2013 09:40 am
Who knows - which of the Uchinoura's launch pads was used? Kappa Pad or not?
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Skyrocket on 09/14/2013 09:41 am
Who knows - which of the Uchinoura's launch pads was used? Kappa Pad or not?

The modified Mu launch pad
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: chewi on 09/14/2013 09:50 am
Who knows - which of the Uchinoura's launch pads was used? Kappa Pad or not?

The modified Mu launch pad

Thanks.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: bolun on 09/14/2013 10:10 am
Launch Result of Epsilon-1 with SPRINT-A aboard

September 14, 2013 (JST)

Japan Aerospace Exploration Agency (JAXA)

Japan Aerospace Exploration Agency launched the first Epsilon Launch Vehicle (Epsilon-1) with the Spectroscopic Planet Observatory for Recognition of Interaction of Atmosphere (SPRINT-A) onboard at 2:00 p.m. on September 14 (Sat.), 2013 (Japan Standard Time, JST) from the Uchinoura Space Center.

The launch vehicle flew smoothly, and, at about 61 minutes and 39 seconds after liftoff, the separation of the SPRINT-A was confirmed.

We would like to express our profound appreciation for the cooperation and support of all related personnel and organizations that helped contribute to the launch of the Epsilon-1.

At the time of the launch, the weather was cloudy, a wind speed was 8.1 meters/second from the east-north-east and the temperature was 27.2 degrees Celsius.

http://www.jaxa.jp/press/2013/09/20130914_epsilon_e.html
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 09/14/2013 10:13 am
SPRINT-A is now named "Hisaki" - "cape of fire" - referring to the fact that its observing targets are all under the effect of the Sun, as well as a cape near its launch site.

OK I have got some of the translations wrong.....

-----------------------------------------------------------------------------------

SPRINT-A
Solar Array Paddles Deployment and Nickname Decided


September 14, 2013 (JST)
Japan Aerospace Exploration Agency (JAXA)

The Japan Aerospace Exploration Agency (JAXA) confirmed that the Spectroscopic Planet Observatory for Recognition of Interaction of Atmosphere (SPRINT-A) has deployed its solar array paddles (SAPs) normally at 15:49 p.m. today through data received at the Uchinoura Ground Station. The SPRINT-A was launched by the Epsilon-1 from the Uchinoura Space Center at 14:00 p.m. on September 14, 2013.
The satellite is currently in good health.
The SPRINT-A's nickname was also decided. It is "HISAKI" The name was chosen for the following reasons.

(1) "Hisaki" is the name of a cape in the Uchinoura area. (The cape at the tip of the Tsushiro Peninsula.)

It is the first brightened point by the rising sun in the Uchinoura area, thus the place is a symbol of a new day in Uchinoura.
It is also a place for local fishermen to pray for safety hence it is a symbol of safe navigation for boats leaving Uchinoura.
As it is a tip shape, it reminds us of the satellite configuration.

(2) Our observation targets are beyond ("saki" in Japanese) the sun ("Hi" in Japanese).

http://www.jaxa.jp/press/2013/09/20130914_hisaki_e.html (http://www.jaxa.jp/press/2013/09/20130914_hisaki_e.html)
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Galactic Penguin SST on 09/14/2013 10:16 am
Two objects have been added to the NORAD catalog:

39253/2013-049A: 808*974 km * 29.75°
39254/2013-049B: 847*1115 km * 29.70°
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Lewis007 on 09/14/2013 10:47 am
High-res pix available at the JAXA site
http://jda.jaxa.jp/category_p.php?lang=e&page=&category1=1&category2=27&page_pics=50
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: baldusi on 09/14/2013 11:37 am
Congratulations! Second rocket to debut this year, right? Could this be the four rocket debut year?
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: William Graham on 09/14/2013 11:43 am
Congratulations! Second rocket to debut this year, right? Could this be the four rocket debut year?

Third, after Antares 110 and Minotaur V. Soyuz-2-1v, Antares 120, Falcon 9 v1.1 and possibly Simorgh to come.
Title: Re: SCRUB: Epsilon launch - SPRINT-A, August 27 2013 (now NET Aug.30)
Post by: Galactic Penguin SST on 09/14/2013 04:26 pm
Interigent solid locket and its revolution by Morita project manerger.
Abstract of Epsilon rocket is writted.(English and Japanese)
It is a reference that easy to understand.
http://www.isas.jaxa.jp/home/rikou/kogata_eisei/symposium/2nd/koto/04.pdf


Very nice, with info on PBS:  280 kg mass, 95 kg prop  (not clear if the 95 is included in the 280)
and bonus - FAB picture of THUNDERBIRD 3 on page 3!!!
(very sad they didn't go with that design :-))

Apparently the Epsilon project manager was inspired by the Thunderbird series during childhood!  ;D http://ajw.asahi.com/article/behind_news/AJ201309140055 (http://ajw.asahi.com/article/behind_news/AJ201309140055)
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: sanman on 09/14/2013 07:00 pm
So this smarter, cheaper rocket was designed to use off-the-shelf technologies to reduce costs and support requirements?
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: jcm on 09/14/2013 07:03 pm
Interigent solid locket and its revolution by Morita project manerger.
Abstract of Epsilon rocket is writted.(English and Japanese)
It is a reference that easy to understand.
http://www.isas.jaxa.jp/home/rikou/kogata_eisei/symposium/2nd/koto/04.pdf


Very nice, with info on PBS:  280 kg mass, 95 kg prop  (not clear if the 95 is included in the 280)
and bonus - FAB picture of THUNDERBIRD 3 on page 3!!!
(very sad they didn't go with that design :-))

Apparently the Epsilon project manager was inspired by the Thunderbird series during childhood!  ;D http://ajw.asahi.com/article/behind_news/AJ201309140055 (http://ajw.asahi.com/article/behind_news/AJ201309140055)

Awesome!!   (and so was I - it is a bit scary how much of my life got determined by Thunderbirds and Dr Who...)
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Rocket Science on 09/14/2013 07:43 pm
Congrats to all the teams, well done! :)
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Chris Bergin on 09/14/2013 08:11 pm
Thanks to all that covered. I - of course - messed up my scheduled and pencilled it in for Sunday morning. However, I did update William's article earlier and I'll add this to the thread now.

http://www.nasaspaceflight.com/2013/09/japans-epsilon-launch-sprint-a/

Things are getting really busy for me, so - even if 10 of you do it - please PM me ahead of a launch if you don't see me posting.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: jcm on 09/15/2013 05:13 am
Now three objects cataloged

39253   808 x 973 km   KM-V2b? (third stage)
39254   847 x 1115 km  PBS? (fourth stage)
39255   952 x 1156 km  SPRINT-A satellite?

I expect that Space-Track will swap the identifications around once it realizes which is which.


Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (ETD 0445UTC)
Post by: Prober on 09/15/2013 01:19 pm
Thanks to all that covered. I - of course - messed up my scheduled and pencilled it in for Sunday morning. However, I did update William's article earlier and I'll add this to the thread now.

http://www.nasaspaceflight.com/2013/09/japans-epsilon-launch-sprint-a/ (http://www.nasaspaceflight.com/2013/09/japans-epsilon-launch-sprint-a/)

Things are getting really busy for me, so - even if 10 of you do it - please PM me ahead of a launch if you don't see me posting.
I'll try and watch your back Chris, and help out.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (0500UTC)
Post by: jcm on 09/16/2013 04:17 am
The preliminary as-flown event times at http://www.jaxa.jp/press/2013/09/20130914_epsilon_j.html
are interesting - most events happened as expected but the post-boost-stage burn times are QUITE different

Burn 1:
Predicted start T+19:08 for 650s
Actual  start T+21:26s for 267s, so 2.3 minutes late and only 41 percent of the duration

Burn 2:
Predicted start T+53:50 for 400s
Actual start T+54:24 for 295s,    so 34s late and 74 percent of duration.

Hence total PBS burn time 562s instead of 1050s, a whopping difference. The orbits achieved
seem to be as expected, so I infer a higher than expected performance  and/or better than expected
injection accuracy on the first three stages and possibly also on the PBS.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (0500UTC)
Post by: Fuji on 09/17/2013 03:09 am
The preliminary as-flown event times at http://www.jaxa.jp/press/2013/09/20130914_epsilon_j.html
are interesting - most events happened as expected but the post-boost-stage burn times are QUITE different

JAXA said, that is role of the PBS. PBS is working correctly   ;)
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (0500UTC)
Post by: yoichi on 09/17/2013 12:50 pm
(video)Control room at the time of launch.
http://jda.jaxa.jp/result_strm.php?lang=j&id=f021f3b699f7a3f9dbfb2f53c9ce977f
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (0500UTC)
Post by: input~2 on 09/17/2013 03:36 pm
English version http://www.jaxa.jp/press/2013/09/20130914_epsilon_e.html
http://www.jaxa.jp/press/2013/09/20130915_hisaki_e.html

Launch Result of Epsilon-1 with SPRINT-A aboard
                                              September 14, 2013 (JST)
                                              Japan Aerospace Exploration Agency (JAXA) 

Japan Aerospace Exploration Agency launched the first Epsilon Launch Vehicle (Epsilon-1) with the Spectroscopic Planet Observatory for Recognition of Interaction of Atmosphere (SPRINT-A) onboard at 2:00 p.m. on September 14 (Sat.), 2013 (Japan Standard Time, JST) from the Uchinoura Space Center.
 
 The launch vehicle flew smoothly, and, at about 61 minutes and 39 seconds after liftoff, the separation of the SPRINT-A was confirmed.
 
 We would like to express our profound appreciation for the cooperation and support of all related personnel and organizations that helped contribute to the launch of the Epsilon-1.
 
 At the time of the launch, the weather was cloudy, a wind speed was 8.1 meters/second from the east-north-east and the temperature was 27.2 degrees Celsius.
 

   (http://www.jaxa.jp/press/img/press_line.gif)
  Epsilon Launch Vehicle (Epsilon-1)
 Launch Sequence (Quick Review)
 
EventActual value
 (Quick review)*1
Predicted value based on
 actual measurement data
1. Liftoff
 2. First stage solid motor burnout*
 3. Payload fairing separation
 4. First and second stages separation
 5. Second stage solid motor ignition
 6. Second stage solid motor burnout*
 7. Second and Third stages separation
 8. Third stage solid motor ignition
 9. Third stage solid motor burnout*
 10. Third stage/Post Boost Stage (PBS) separation
 11. PBS propulsion system first ignition
 12. PBS propulsion system first cutoff
 13. PBS propulsion system second ignition
 14. PBS propulsion system second cutoff
 15. SPRINT-A separation
 
0 min. 0 sec.
 1 min. 54 sec.
 2 min. 31 sec.
 2 min. 40 sec.
 2 min. 45 sec.
 4 min. 24 sec.
 10 min. 23 sec.
 10 min. 27 sec.
 11 min. 56 sec.
 16 min. 47 sec.
 21 min. 26 sec.
 25 min. 53 sec.
 54 min. 24 sec.
 59 min. 19 sec.
 61 min. 39 sec.
0 min. 0 sec.
 1 min. 52 sec.
 2 min. 30 sec.
 2 min. 41 sec.
 2 min. 45 sec.
 4 min. 27 sec.
 10 min. 24 sec.
 10 min. 28 sec.
 11 min. 57 sec.
 16 min. 48 sec.
 19 min. 8 sec.
 29 min. 58 sec.
 53 min. 50 sec.
 60 min. 30 sec.
 61 min. 40 sec.
*1 The values are based on quick report results before detailed data evaluation.


HISAKI (SPRINT-A)
Orbit Calculation Result and  Critical Operation Period Completion
 
                                                                              September 15, 2013 (JST)
                                                                              Japan Aerospace Exploration Agency (JAXA)

The Japan Aerospace Exploration Agency (JAXA) confirmed that the Spectroscopic Planet Observatory for Recognition of Interaction of Atmosphere "HISAKI" (SPRINT-A) was injected into the planned orbit after its orbit calculation as follows.
 
 
Orbit Calculation Result
Actual valuePlanned value
Apogee altitude1156.8 km1150 km
Perigee altitude946.8 km950 km
Inclination29.7 deg30 deg
Period106.2 min106 min

 
 We have now completed the critical operation period for the HISAKI (SPRINT-A) after we successfully performed essential events including the planned orbit insertion, solar array paddle deployment, and sun acquisition.
 
 JAXA will take about two months to further confirm the status of the HISAKI (SPRINT-A) such as verifying the high-precision attitude control function that is imperative for planet observations.
 
 We would like to express our sincere appreciation to all the parties and personnel concerned for their support and cooperation with the HISAKI (SPRINT-A) launch and tracking control operations.
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (0500UTC)
Post by: Galactic Penguin SST on 09/18/2013 04:21 pm
A collection of narrow and wide shots of the launch:

http://www.youtube.com/watch?v=uTl7-gKFDn0
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (0500UTC)
Post by: jcm on 09/19/2013 01:05 am
The preliminary as-flown event times at http://www.jaxa.jp/press/2013/09/20130914_epsilon_j.html
are interesting - most events happened as expected but the post-boost-stage burn times are QUITE different

JAXA said, that is role of the PBS. PBS is working correctly   ;)

Yes, that's what I thought.

As expected, STRATCOM has swapped 39253 and 39255 so now the objects are Hisaki, PBS and stage 3  =
39253 39254, 39255 respectively
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (0500UTC)
Post by: Fuji on 09/19/2013 07:01 am
For Epsilon fan  :)
 "Current status and future plan of the Epsilon rocket" March 7, 2013

This is Japanese material but many good information here.
http://www.isas.jaxa.jp/home/rikou/kogata_eisei/symposium/3rd/p_session/P53.pdf
Title: Re: Epsilon launch - SPRINT-A, Sept.14, 2013 (0500UTC)
Post by: Galactic Penguin SST on 09/24/2013 01:47 pm
http://www.youtube.com/watch?v=8gL1aMLiU3E